Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 17 of 17

Thread: Replumb equipment pad pipes to 2" from 1.5" should be ok?

  1. Back To Top    #1

    Join Date
    Jan 2015
    Location
    Tempe, AZ
    Posts
    15

    Replumb equipment pad pipes to 2" from 1.5" should be ok?

    I have just purchased a house with a pool, and am a first time pool owner. Pool details are in my sig. I assume the pool was built in 1979 with the house, but at any rate it has, as far as I can tell 1.5" piping for most of the way.

    I have purchased some new equipment to refresh my equipment pad, and I will be adding a SWG, VS pump, a Flow-Vis flow meter, and a 520 sqft catridge filter. All of the equipment comes with 2" ports. I thought it would be easier to just cut the old 1.5" pipes off at the ground, then step up with a bushing to 2" and do all the above ground piping with the 2", so I don't have to install reducers at every equipment point. Plus it appears there have been several repairs over the years, and I don't like all the elbows and couplers, and piping paths.

    If I am understanding the sticked post "Hydraulics 101... have you lost your head" at worst, this will be a non issue; and at best it will be a minute improvement due to lower head. Is this true?

    For reference, I have included a pic of my existing pool equipment "pad"

    http://i1380.photobucket.com/albums/...pstauv2t6q.jpg
    40,000 Gallons- "Lazy L"; IG-Fiberglass; Pentair Clean and Clear+ 520; Circupool VJ3 VS Pump (2.4 SFHP); Circupool SJ-45 SWG

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Welcome to TFP!!!

    What you propose is a good idea. There is a lot of head loss in all the fittings/turns on the equipment pad, so increasing to 2" can certainly help.

    I redid my pad and spent a LOT of time thinking / visualizing so that I could remove as many 90 degree fittings as I could ... probably did not make a huge difference, but I wanted to be as efficient as I could.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Sure, that will work fine. That is a nice new equipment list!
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    BTW, I recommend that you use good pool valves for anything you replace as they last a lot longer than the cheap PVC ball valves.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,490

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Quote Originally Posted by kreedaz View Post
    If I am understanding the sticked post "Hydraulics 101... have you lost your head" at worst, this will be a non issue; and at best it will be a minute improvement due to lower head. Is this true?
    Based upon the equipment in your signature, increasing the pipe and fitting size on the pad would reduce head loss by about 7%. That would actually increase the power consumption of the pump UNLESS you reduce the RPM to compensate. So assuming you did change the RPM and at 65 GPM before and after, the VS would use about 100 watts less power (1050 vs 1144 watts ~10% power savings). But again, you have to reduce the RPM to realize that. Most people don't because it is a small change in RPM (2500 vs 2580).
    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

  6. Back To Top    #6

    Join Date
    Jan 2015
    Location
    Tempe, AZ
    Posts
    15

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    thank you all for the feedback,
    @mas985 I will be sure to reduce the RPM's, since I am buying a VS pump to replace the old single speed. I also plan to purchase
    @jblizzle when you say "good pool valves" I assume you are referring to things like the Jandy series of valves. Are there other options? For good ones i mean, or is Jandy really the way to go?

    Finally, one more question... relating to plumbing... and I almost feel dumb asking, the answer seems so obvious, but I want to make sure...
    I have 5 return lines in the pool.
    2 of them are plumbed to the bench in the deep end. If I cover up the eyeball (like say if I rotate the eyeball too far and it actually blocks the pipe, I get water that shoots (up to 4 inches high or so) out of the pavers on my deck. This happens no matter which return I plug. So I assume these 2 returns are "Y'd" together beneath the decking. I am thinking this is bad, and would indicate a leak (loose fitting, broken pipe, etc) I mean, this isn't normal right?

    I think it is a loose fitting that is probably ok most of the time as I don't really notice a significant drop in pool levels, so i don't think it is a leak per se... I am guessing it might only be a problem when i plug the eyeball and the added pressure blows the fitting back a bit.

    Thanks again.
    40,000 Gallons- "Lazy L"; IG-Fiberglass; Pentair Clean and Clear+ 520; Circupool VJ3 VS Pump (2.4 SFHP); Circupool SJ-45 SWG

  7. Back To Top    #7
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,490

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    It could mean those are venturi jets. Do you get air bubbles out of those returns?
    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
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Pool returns are usually all plumbed together in a loop so the flow from the returns stays balanced. There are some pools that have some sort of 3/4"-1" vent or air venturi in the deck that is tied into the return line. My brother's pool in FL has them too. They have been mentioned in some threads here and I don't recall anyone really knowing what they are for.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  9. Back To Top    #9
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    It is fairly common for spa style jets, with bubbles, to show up around benches in certain styles of pool design, a kind of semi-spa experience. They are usually on their own valve, so they can be turned off.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  10. Back To Top    #10
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Yes I meant the Jandy Neverlube-type valves. Hayward and Pentair make similar ones as well.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  11. Back To Top    #11

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    One benefit to using the larger pipe and fittings is that the noise of water going through can be reduced. At the same gpm, water goes much faster through 1.5" than 2". In some cases the sound difference can be significant

  12. Back To Top    #12

    Join Date
    Jan 2015
    Location
    Tempe, AZ
    Posts
    15

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Thanks for the responses all. There are not any bubbles that come out of the returns. And if I am reading between the lines correctly, if these aren't venturi/spa returns, then there shouldn't be any leaks like this.
    40,000 Gallons- "Lazy L"; IG-Fiberglass; Pentair Clean and Clear+ 520; Circupool VJ3 VS Pump (2.4 SFHP); Circupool SJ-45 SWG

  13. Back To Top    #13
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Correct, blocking normal returns shouldn't cause water to spray out. The fact that water does spray out is what convinces me that they are venturi returns.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  14. Back To Top    #14

    Join Date
    Jan 2015
    Location
    Tempe, AZ
    Posts
    15

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Just an update for anyone that cares...
    I did complete my pad upgrade this weekend, and I did use the 2" pipe and everything worked just fine. it took me 3 days to get it done (you probably aren't going to want me to do your system, I charge by the hour ), and the pool started getting an algae bloom I think during that time, but hopefully I caught it in time.

    I also used all Jandy never lube valves, since none of the valves (well besides the one jandy valve I already had) on my old system worked, (even the ones that still had handles didn't actually turn)

    Mas985 was right, those 2 bench returns are in fact venturi returns. With the new pump running anywhere above 70% or so, these returns bubble like crazy.

    Thanks all for the responses.
    40,000 Gallons- "Lazy L"; IG-Fiberglass; Pentair Clean and Clear+ 520; Circupool VJ3 VS Pump (2.4 SFHP); Circupool SJ-45 SWG

  15. Back To Top    #15
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Congrats on tackling that project. Probably took me 3 days to do mine too ... after a LOT of thinking and planning to reroute things.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  16. Back To Top    #16

    Join Date
    Apr 2015
    Location
    Knoxville, TN
    Posts
    8

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Quote Originally Posted by kreedaz View Post
    Just an update for anyone that cares...
    I did complete my pad upgrade this weekend, and I did use the 2" pipe and everything worked just fine. it took me 3 days to get it done (you probably aren't going to want me to do your system, I charge by the hour ), and the pool started getting an algae bloom I think during that time, but hopefully I caught it in time.

    I also used all Jandy never lube valves, since none of the valves (well besides the one jandy valve I already had) on my old system worked, (even the ones that still had handles didn't actually turn)

    Mas985 was right, those 2 bench returns are in fact venturi returns. With the new pump running anywhere above 70% or so, these returns bubble like crazy.

    Thanks all for the responses.
    I know this was almost 2 years ago, but I was wondering if you have a picture of the re-piped pad? I am about to undertake a similar refresh and was planning to do a similar 1.5" > 2" upgrade for all the pad plumbing.
    Blue Haven inground (kidney shaped), approx 22k gallons, Hydramax II pump w/ 1hp AO Smith single speed motor, Pentair Tagelus TA-60 sand filter, IntelliBrite 5G. Lots of problems. ..attacking them 1 by 1

  17. Back To Top    #17

    Join Date
    Jan 2015
    Location
    Tempe, AZ
    Posts
    15

    Re: Replumb equipment pad pipes to 2" from 1.5" should be ok?

    Let me see if I can grab a shot tonight when I get home.

    40,000 Gallons- "Lazy L"; IG-Fiberglass; Pentair Clean and Clear+ 520; Circupool VJ3 VS Pump (2.4 SFHP); Circupool SJ-45 SWG

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •