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Thread: Where do you buy your parts for rebuilding pumps and motors?

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    Where do you buy your parts for rebuilding pumps and motors?

    Where do you guys generally get your parts online for rebuilding your pumps and motors?

    With three Sta-Rite Max-e-Glas II {AO Smith QC1102 1.0x1.65SF 1.65 HP} pumps, one is always going out on me.
    I've been paying for others to rebuild the motors and replace the pump seals but I'd like to order the parts and try rebuilding on my own.

    Here are the bearings my pumps appear to be using:


    May I ask where you guys go on the net to buy parts such as pump seals and motor bearings?
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  2. Back To Top    #2
    Smykowski's Avatar
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    Re: Where do you buy your parts for rebuilding pumps and mot

    Pump specific stuff like impellers, seals, gaskets, etc., I try either Amazon or Ebay first. I use the manual and crosscheck at www.poolpartsonline.com to make sure I'm looking at the correct part numbers first.

    Since bearings are universal, I bought them at Grainger for a fraction of anywhere else I found online. If you've got a retail location nearby, you can save even more on shipping by buying at the counter. Somewhere on the website they list the numbers you wrote so you can crosscheck those numbers as well.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    mas985's Avatar
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    Re: Where do you buy your parts for rebuilding pumps and mot

    Quote Originally Posted by rock
    With three Sta-Rite Max-e-Glas II {AO Smith QC1102 1.0x1.65SF 1.65 HP} pumps, one is always going out on me.
    How often are they failing?

    A pump that has repeated seal failure probably has other issues as well such as a bent motor shaft.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Mod Squad Bama Rambler's Avatar
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    Re: Where do you buy your parts for rebuilding pumps and mot

    I agree with Mark, Those pumps should last for years before needing any repairs.

    Having said that. I buy all my bearings and seals from Motion Industries.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Where do you buy your parts for rebuilding pumps and mot

    mcmaster.com is where I go for bearings if I know the trade size or actual dimensions.

    Ive never bought o-rings from them but I think the same would apply: if you know the size and diameter they can probably be had much cheaper than an actual pool manufacturer labelled part.
    22K IG vinyl, .5HP Northstar pump, S244T filter, AutoPilot Digital w/SC-48 cell

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    Re: Where do you buy your parts for rebuilding pumps and mot

    Quote Originally Posted by mas985
    How often are they failing?
    One by one, I've replaced all the original motors (which were about 10 years old):

    Looking at prices, I think I've been paying for rebuilds of about what the motor costs brand new!
    A.O. Smith 1 H.P Square Flange Up Rate Motor (USQ1102)
    Quote Originally Posted by mas985
    A pump that has repeated seal failure probably has other issues
    The seals were working fine until I opened up the pump during an unrelated plumbing repair operation.

    Quote Originally Posted by chrisexv6
    mcmaster.com is where I go for bearings if I know the trade size or actual dimensions
    I just realized, from what you said, that the TRADE SIZE is the key to pricing and quality!
    What I need to do is figure out the trade size for all my rebuilding parts.
    Pump parts (Sta-Rite Max-e-Glas II)
    1. Pump seal
    2. Seal plate (large) o-ring
    3. U9-374 Diffuser (small) o-ring
    4. Pump basket lid (medium) o-ring

    Motor parts (AO Smith 1.65HP QC1102, 48Y square flange)
    1. 604005-001 double sealed high thrust bearings (trade number 6203D or is it 6203LL?)
    2. Very long bolts that always seem to break


    Quote Originally Posted by Smykowski
    Amazon or Ebay first ... then Grainger. ... crosscheck at http://www.poolpartsonline.com
    Once I know the 'trade name', I can find it on Amazon much easier, e.g.,
    - OEM #U9-374
    Quote Originally Posted by Bama Rambler
    bearings and seals from Motion Industries.
    Thanks.

    Note: I also found these guys on YouTube:
    http://wetheadpumprepair.com/store/prod ... epair-kit/
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

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    mas985's Avatar
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    Re: Where do you buy your parts for rebuilding pumps and mot

    10 years is not so bad. I got the impression there were multiple failures per motor/pump.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

  8. Back To Top    #8

    Re: Where do you buy your parts for rebuilding pumps and mot

    Quote Originally Posted by mas985
    10 years is not so bad. I got the impression there were multiple failures per motor/pump.
    From memory, three went out, one year at a time, since I bought the house-with-pool.
    All were sent to the local shop to be rebuilt, which cost about $150 each for a rebuilt motor (IIRC) because they couldn't get the motors apart.
    Here is what they gave me back since I asked for all parts to be returned:
    Notice almost all the through bolts are snapped.


    EDIT: I just asked for a price & availability quote from http://wetheadpumprepair.com:
    Hi Joe Tomorrow & Bob,
    I have four Sta-Rite Max-e-Glas II pumps with one-horsepower-sized diffusers/impellers.
    I would like an itemized quote on parts & supplies to rebuild four Sta-Rite Max-E-Glas II pumps (one isn't in service yet):
    - pump seal PS-201
    - seal plate o-ring U9-228A
    - diffuser o-ring U9-374
    - pump basket o-ring
    - sealant and lube

    I also would like an itemized quote on these three motors in use at the pool:
    (spa) AO Smith SQ1152 [K48M2PA105C4] 1.5HPx1.47SF=2.20 48Y square
    (cleaner) AO Smith QC1102 [K48L2PA1101A1] 1.0HPx1.65SF=1.65 48Y square
    (filter) AO Smith QC1102 [K48L2PA101A1] 1.0HPx1.65SF=1.65 48Y square
    And on these potential rebuilds:
    (old) AO Smith QC1102 [K48L2PA101A1] 1.0HPx1.65SF=1.65 48Y square
    (old) AO Smith U27-881 [K48L2PA105] 1.5HPx1.10SF=1.65 48Y square
    (old) AO Smith U27-884 [K48M2PA105] 2.0HPx1.10SF=2.20 48Y square

    What I would need for the motors, I think, are the
    - double-sealed high-thrust bearings (6203 or equivalent are used for the 1.65 HP motors)
    - through bolts (they are different lengths depending on the motors)

    Also, if I decide to rebuild the motors, I'd need a quote on:
    - bearing puller
    - bearing seater
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  9. Back To Top    #9

    Re: Where do you buy your parts for rebuilding pumps and mot

    inyopools.com
    very helpful and seem to have lots of parts...
    ~ 25'x40' irreg kidney 27k gal IG gunnite(?) circa 1956.
    O order; AOSmith two speed Fullrated 1.0HP with 1.65SF; Challenger PAC-FAB 1 1/2 HP Impeller
    Raypac P-R266AS-EN-C heater installed summer 2012
    Tagelus High Rate sand filter (60gpm)
    Replaced soon; 1.5 HP 1.1 SF M Centurion Motor;

  10. Back To Top    #10

    Re: Where do you buy your parts for rebuilding pumps and mot

    Quote Originally Posted by MD_harley
    inyopools.com
    That's a nice find because it helps to find the trade size of the parts we need to rebuild our pumps and motors.
    For example, they list AO Smith motor bearing part number 604005-001 as the 6203-2RS for $18.99:

    Note: Inyo above says the bearing manufacturer is AO Smith, but AO Smith tech support told me today all their bearings are made by NSK (i.e., NSK 6203WC3E CLKEEMSM is the part number they gave me).

    The key is that Inyo Pools indicates it's a 6203-2RS trade size bearing. That's important information!
    Googling the INYO Pools reference of 6203-2RS, the number scheme apparently indicates:
    6 = metric sized, single row, deep groove
    2 = 40mm OD by 12mm thick, light duty
    03 = 17 mm bore diameter
    2RS = double nitrile rubber seals (i.e., one on each side, to keep contaminants out)

    Googling some more, I can find that bearing commonly for about $1.21 to about $1.60 to about $2.77 each.


    Interestingly, I had called AO Smith (now CenturyElectricMotors.com) technical support at 800-262-6484 today, who said the bearings on all my motors were 6203 double sealed, but other than the OEM supplier's part number, they didn't know any more. So the 6203-2RS reference from INYO Pools makes sense, given that it needs to be a 6203 size, double sealed, with no shields.

    Googling for the AO Smith part number 606202-071 through bolts, I find they're $4 each at Inyo Pools, or $3.30 each at PoolProducts, or $2.57 each at Aqua-Man, where the Inyo Pools description is, again, apropos:
    A.O. Smith Motor Thru-Bolt, 8-32 x 9-3/8" x 2" Thread


    For the trade size, AO Smith technical support explained all their thru-bolts are 1/4 inch hex head 0.272" diameter rods, of varying lengths (depending on the motor) where the last inch of the rod is UNC rolled thread of size #8x32 inch.

    Since I'm inclined to buy stainless steel rods instead of these soft steel through bolts, all I need to know are the various lengths:
    AO Smith QC1102 1.65HP(net) 09.38" thru bolts, 9 3/8" long, P/N 606202-071
    AO Smith U27-884 2.20HP(net) 10.25" thru bolts, 10 1/4" long
    AO Smith U27-881 1.65HP(net) 10.25" thru bolts, 10 1/4" long
    AO Smith SQ1152 2.20HP(net) 10.75" thru bolts, 10 3/4" long

    For the pump, I had called Sta-Rite (now Pentair Pool) technical support today, at 800-831-7133x1x1x5.
    They first asked for the model number on the side of the Max-e-Glas II pump body, which was C76-59P, before giving the pump seal part number of 37400-0027S (which may or may not be correct).

    1. Pump Seal = <== Both this PDF and that PDF say the right part number is: Pump Seal Max-E-Glas II = U109-358SS, PS-201, PS-851, PS-3868, VG-201
    .
    For an upgraded seal, I could go with what it says hereor there, which is to buy the PS-1902 or the PS-4265 or PS-3868.

    2. Seal Plate O-Ring = U9-228A
    3. Seal Plate housing o-ring = ?
    4. Diffuser O-Ring = U9-374
    5. Basket Lid O-Ring = U9-375

    Looking for the trade sizes for those o-rings, this GO-KIT38-9 kit appears to be $26 for all 5 components:
    1. AS-1521 Shaft Seal
    2. O-113 Seal Plate O-Ring
    3. O-240 Seal Plate Housing O-Ring
    4. O-83 Diffuser O-Ring
    5. O-12 Basket Lid O-Ring


    So, in hindsight, after learning from you guys, it seems the first goal is to find the trade size of all the necessary parts; and then to find a supplier for those trade-size parts.
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  11. Back To Top    #11

    Re: Where do you buy your parts for rebuilding pumps and mot

    Here's an update, for anyone needing to rebuild their Sta-Rite (now Pentair) pumps & filters and AO Smith (now Regal, who owns Century Motors, who bought AO Smith) motors.
    The trick, it seems, for buying higher quality pool parts at a better price is to find the trade size ... as an $18 good bearing becomes a $5 better bearing in that process and o-rings can be stocked in the dozens for the prices you pay for a single one.
    Once you have the trade size, then the rest is simply sourcing on the net, since all the parts appear to be standard parts.

    These cross references are useful for o-ring trade-size conversion from your pool equipment part numbers:
    - http://www.aladdin1950.com/images/parts ... ss_ref.pdf
    - http://www.aladdin1950.com/images/parts ... _cross.pdf
    - Aladdin Equipment Company 941-371-3732
    Note: This document lists the chemical resistance of the various o-ring materials.

    O-Ring sizing charts:
    http://www.allorings.com/size_cross_ref ... framed.htm
    http://www.marcorubber.com/sizingchart.htm
    http://www.broadleyjames.com/o-rings-size-chart.html

    Best O-Ring suppliers:
    1. http://www.oringwarehouse.com <-- has a very easy to use calculator
    2. http://www.theoringstore.com <-- has pentair sizes such as U9-374
    3. http://www.mfpseals.com
    4. http://www.oringsusa.com

    I made the following diagram for you to see the summary of the trade sizing:

    Bigger: http://www1.picturepush.com/photo/a/131 ... 134279.png
    -----
    AO Smith QC1102 1.65HP(net) motor [800-262-6484 centuryelectricmotor.com]:
    SPECIFICATION PDF (dimension PDF),impeller removal procedure).
    1. bearing (x2), 17x40x12mm (IDxODxW) nitrile double sealed (not shielded), 6203-2RS,
    a. Brand = NSK is OEM; use name brand such as INA, F.A.G., SKF, Timken, Koyo, Nachi, NSK-RHP
    b. Tolerance = ABEC3 / ISO P6 (ABEC1 / ISO P0 is probably acceptable)
    c. Radial play = C3 / P25
    d. Noise = EMQ (electric motor quality) ZV2
    e. Material = 52100 chromed steel & buna N rubber seals (both sides)
    2. Thru-bolt (4) 606202-071 1/4"hexhead, #8x32-1" 0.272" 9.375" (9 3/8") (stainless steel threaded rod + nuts may be a better solution)
    3. TefGel or equivalent PTFE dissimilar metal anti-seize (works by filling voids & not evaporating)
    -----
    Sta-Rite Max-e-glas II Pool Pump [Pentair Pool 800-831-7133x1x1x5]:
    SPECIFICATION PDF
    4. 3/4" shaft seal 3/4" (Buna=37400-0027S, PS201 $5)(Viton=37400-0028S, PS3868 $10)
    5. Seal plate housing o-ring, U9-228A (trade size O-240 buna-n70 rubber at 16¢ each)
    6. Diffuser o-ring, U9-374; trade size Alladin O-83 at $1.41 each <== this is a strange size
    7. Trap cover o-ring, U9-375; trade size O-12 at 1¢ each
    8. Drain plug o-ring (x2) U9-359; trade size O-39 at 8¢ each
    9. pre1998: Insert o-ring U9-376; trade size O-113 at 2¢ each
    10. PTFE-based sealant/lubricant for proper gasket seal
    Note: Most O-ring trade-sizes are based on the Aladdin GO-KIT38-9
    Note: The drain plug o-ring size is based on this and other reports on the net.

    Sta-Rite System 3 Model S8M150 filter tank, 25-inch diameter
    SPECIFICATION PDF.
    11. Cord ring 24850-0009; trade size Alladin 0-486 <=== this is a strange size
    12. Union O-Ring U9362? (based on this listing), trade size unknown
    13. Large cartridge 25022-0203S; trade size unknown
    14. Small cartridge 25021-0202S; trade size unknown
    Note: Cord o-ring trade size is based on this listing and this cross reference.

    Larger: http://www2.picturepush.com/photo/a/131 ... 147850.png

    Paramount PC2000 pool cleaner system
    15. Six-Port Dome Base O-ring PN: 005-302-0100-00)
    16. PCC2000 Nozzle O-Ring PN: 005-552-0142-00
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  12. Back To Top    #12

    Re: Where do you buy your parts for rebuilding pumps and mot

    I like wetheadpumprepair.com, they sell rebuilt kits and have many helpful videos.

  13. Back To Top    #13
    Smykowski's Avatar
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    Re: Where do you buy your parts for rebuilding pumps and mot

    Great info, thanks for posting.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  14. Back To Top    #14

    Re: Where do you buy your parts for rebuilding pumps and mot

    Quote Originally Posted by patpend
    I like wetheadpumprepair.com, they sell rebuilt kits and have many helpful videos.
    Until this week, I had never heard of Joe Tomorrow at WetHeadPumpRepair.com, so my opinion is nascent; but this is what I know:
    a) They cover *all* the real details, in real time, in their 300 videos on pump repair and for that, they're GREAT!
    b) Their videos even tell you what tools you need, and what tools you don't need (which is GREAT)
    c) They supply very nice repair kits and they sell the necessary tools for homeowners to work on their pumps
    d) Their videos are obnoxiously repetitive (like a commercial, which is what they are)
    e) Their web site is really hard to navigate if your pump or parts aren't already listed (and phone support says to email them)
    f) They responded back to my email with a simple one-line saying it was too complicated to provide a quote
    g) Their prices appear to be as overpriced as *all* the pool supply companies (which I can't fault them for)

    Quote Originally Posted by Smykowski
    Great info, thanks for posting.
    Thank you guys for suggesting the trade-size trick.
    The process for sourcing high-quality pool pump parts at a great price appears to be these three steps, and I'm only in the second step:
    a) Obtain inventory of desired parts
    b) Determine the trade size for each part
    c) Source the parts

    For example, once you have the o-ring material and size, these are some o-ring suppliers:
    - http://www.oringsusa.com
    - http://www.mcmaster.com/#o-rings/=mwfbpf
    - http://www.theoringstore.com
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  15. Back To Top    #15

    Re: Where do you buy your parts for rebuilding pumps and mot

    Now that we've figured out all the trade sizes for the o-rings, bolts, and bearings, does anyone know what the rubber material is for pool pump o-rings?

    Googling, I see they can be made out of any of a score of materials, most commonly Viton, Buna/Nitrile, Silicone, or Butyl rubber.
    Does anyone know what material our pool pump o-rings are made out of?

    EDIT: This listing for the 25-inch filter o-ring is confusing whether the material should be Viton or Buna:
    This listing mentions pool o-ring material; but it is confusing at best whether we should buy Buna or Viton o-rings.
    http://tinyurl.com/nojnt73
    http://www.theoringstore.com/index.php? ... s_id=18551
    24850-0009 Sta-Rite Tank O-Ring - System 3 Filter, 25 inch diameter
    Alladin O-486
    The o-rings listed are made from Buna, Viton or EPDM compounds. All pool o-rings are made from Buna unless otherwise stated. If you are running a chlorine system and can not locate the Viton o-ring that you need, please contact us to make sure one is available.
    From that, I can't tell if pool o-rings are buna or viton.

    Large: http://www4.picturepush.com/photo/a/131 ... 148292.png

    Googling for o-ring materials, it seems the material choices go in this order:
    a. First see if BunaN (same as Nitrile) will work (because it's the cheapest solution).
    b. If that won't work, use Silicone,
    c. If that won't work, use Viton (Fluoro-elastomer),
    d. If that won't work, use EPDM,
    e. If that won't work, use Kalrez (perfluoro-elastomer).

    The odd thing is that this blog article says the following (which must be incorrect):
    Swimming pool pump and filter o-rings are typically made with EPDM rubber, while chlorinator o-rings are usually made of a Fluorocarbon, Viton or FKM. Some more expensive types are made with a Nitrile rubber, used in Buna type o-rings.
    But it would be helpful if someone actually knows the answer.
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  16. Back To Top    #16

    Re: Where do you buy your parts for rebuilding pumps and mot

    Quote Originally Posted by rock
    does anyone know what the rubber material is for pool pump o-rings?
    I found out that Buna rubber (aka Nitrile, or Buna-N) is the "standard" material for all rubber components in a normal chlorine pool like mine.

    It turns out that the chlorinator, which I know little about, of a salt pool has a harsher environment, which requires the Viton or EPDM rubber o-rings; otherwise, pool water is about as benign as drinking water - which means the standard Buna-N o-ring works out just fine (as long as it's not exposed to direct sunlight).

    It also turns out that the suggestion of buying o-rings by trade size (e.g., O-486) is vastly less expensive than buying by pool part number; and, not surprisingly, the markup at the pool stores is 1000% or greater than at the industrial supply houses.

    So, like the BBB system, when you put it together, buying parts is as simple as sourcing the trade size!

    If folks are interested, the sizing for inch-dimension O-rings is relatively simple: There are six ranges, the first five of which are by cross section. Within the same cross section, the O-rings are ordered by inside diameter.
    The sixth "range" (also called a "group") is for boss-style o-rings, and follows a different convention altogether (they are arranged numerically by outside diameter in 1/16" increments). That's it for o-ring sizing. Best to just consult a chart since there are only as many standard sizes as there are days in a year.

    Note: The same BBB-style simplification logic goes for pump seals (e.g., PS201 = buton, PS3868 = Viton) and for bearings (e.g., 6203D vs 6203-2RS).
    Thanks everyone for helping me see the light of how to source all my replacement parts for a fraction of the cost of buying them by Sta-Rite & AO Smith part number at the pool stores!
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

  17. Back To Top    #17
    Smykowski's Avatar
    Join Date
    Sep 2011
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    Gurnee, IL (North Suburban Chi-town)
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    Re: Where do you buy your parts for rebuilding pumps and mot

    We love BBB because of the simplicity of the chemistry and chemical purchases. But we still end up going to the pool store for parts. Thanks for posting this info.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  18. Back To Top    #18

    Re: Where do you buy your parts for rebuilding pumps and mot

    I think my housing o-ring is bad since my pump is leaking out the bottom. There is only a clamp holding the pump together (no bolts). I can't find what o-ring to buy anywhere! Can someone help find what o-ring I need for this motor?


    Brand Name Part No Century Stock No HP RPM CFM Volts Frame Size Phase Motor Type Frequency Enclosure
    A.O. Smith B848 B2848 1.0 3450 230/115 Y56Y 1 CX 60 ODP
    My Pool:
    26,000 Gallon, In-ground, Vinyl lined, Sand Filter, BBB Method, TF-100, SpeedStir

  19. Back To Top    #19
    Smykowski's Avatar
    Join Date
    Sep 2011
    Location
    Gurnee, IL (North Suburban Chi-town)
    Posts
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    Re: Where do you buy your parts for rebuilding pumps and mot

    When you say leaking out the bottom, where exactly? If it's between the motor and wet end it could also be a shaft seal. Can you post a picture?
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  20. Back To Top    #20

    Re: Where do you buy your parts for rebuilding pumps and mot

    I can't take a picture right now. But water is coming out the very bottom where the two parts meet. Right at the large metal clamp.
    My Pool:
    26,000 Gallon, In-ground, Vinyl lined, Sand Filter, BBB Method, TF-100, SpeedStir

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