Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 14 of 14

Thread: Replacing a Single speed pump with a Variable Speed

  1. Back To Top    #1

    Join Date
    Aug 2015
    Location
    Arlington, TX
    Posts
    5

    Replacing a Single speed pump with a Variable Speed

    I have an AquaFlo 1.5 hp pump an a 60 square foot DE filter that I need to replace.
    I have looked online at Pentair, Hayward and Jandy.
    In reading the installation manuals, Jandy is the only one you can hook up a freezestat to without having a pool automation controller.
    I like the idea of a VS pump but I don't want to blow a lot of money on an automation system.
    Also, Pentair and Hayward don't offer much of a warranty if you install it yourself.
    I used to install and service VFD's from fractional to 50 HP, so I am pretty sure I can install it correctly.

    Any thought on the freeze stat?

    Thanks.

  2. Back To Top    #2
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Replacing a Single speed pump with a Variable Speed

    by freeze stat, if you mean freeze protection, then many of the VS Pumps have them built in. I know mine does.

    And yeah, warranty for DIY'ers pretty much are a bummer. However, if you read the Pentair warranty, it states "qualified" installer and not certifield. All you have to do is connect the plumbing and power cable. I installed my own. Piece of cake. No clue what specifically Pentair means by qualified. Lots of pool people in the industry that I wouldnt let anywhere near my equipment.

    Like you, I have installed literally Tons of VF drives and I consider myself way more than qualified to install a pool pump.
    Not sure how Pentair or the others would view it if something were to happen though.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  3. Back To Top    #3

    Join Date
    Aug 2015
    Location
    Arlington, TX
    Posts
    5

    Re: Replacing a Single speed pump with a Variable Speed

    Dave,
    Thanks for the quick response.
    The Pentair manual "advises" that the internal freeze protection is only for the pump and to use external freeze protection for the piping and filter.
    You live in about the same temperature range as I do, do you leave your pump on all year?
    And I am guessing using the internal freeze protection you haven't had any problems.

  4. Back To Top    #4
    Agent99's Avatar
    Join Date
    Aug 2008
    Location
    San Jose, CA
    Posts
    688

    Re: Replacing a Single speed pump with a Variable Speed

    For sure Pentair's warranty stuff stinks for us avid DIYers. I'm only hoping their stuff is REALLY GOOD and I don't need their stinkin' 3-year warranty but the cost of having someone else install it was just crazy and I just couldn't do it. I installed my own pump and own NG heater. This stuff isn't rocket science for goodness sakes....
    ----Chris----
    25k IG/Spa Figure 8, 18x36, Pebble Sheen Blue Granite, Sta-Rite S8M150 Cartridge Filter, Pentair 460805 400k BTU Heater & 011018 IntelliFlo VarSpd
    Liquidator, Fafco Solar Heat, Polaris PB460 Booster Pump w/280 cleaner, Katchaleaf Cover, TF100 Test Kit, FAKE MAIN DRAIN

  5. Back To Top    #5
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Replacing a Single speed pump with a Variable Speed

    Hey Shuman,
    The freeze protection on the pump will start the water flowing. Dynamic water freezes a lot slower than static water does.
    The flowing water is going to be the best protection of the pipes and filter too.

    Its not a bad idea, if the temp is going to be below 25 for days on end, to wrap your pipes and filter and pump with tarps, or something similar.
    The tarp is to keep the wind off the equipment as the wind will exasperate the situation. There isnt any other 'freeze protection' other than draining water below all the returns, and blowing water out of the pipes like what folks up North have to do.

    Last year, we had temps here down in the teens of lots and lots of days just like you did. I didnt use the tarp, and suffered no problems.
    There are a LOT of folks here on TFP from the DFW area like you, and none of them had problems either.

    Winter before last was my first winter with a pool and I fretted about it a lot, and all for nothing.

    In winter, I have my RPMs down to about 900 which uses about 100 watts and yes, it runs until the temp rises above about 40F.

    hope this helps,




    Quote Originally Posted by shuman View Post
    Dave,
    Thanks for the quick response.
    The Pentair manual "advises" that the internal freeze protection is only for the pump and to use external freeze protection for the piping and filter.
    You live in about the same temperature range as I do, do you leave your pump on all year?
    And I am guessing using the internal freeze protection you haven't had any problems.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  6. Back To Top    #6
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,489

    Re: Replacing a Single speed pump with a Variable Speed

    I am not a big fan of pump run freeze protection and I explain why in this thread: The Physics of Freezing and Freeze Protection
    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

  7. Back To Top    #7
    Agent99's Avatar
    Join Date
    Aug 2008
    Location
    San Jose, CA
    Posts
    688

    Re: Replacing a Single speed pump with a Variable Speed

    Mark,

    Not so much for us BA'ers to worry about, eh?

    Nice write-up. I actually have all my pool equipment contained within a plastic Lifetime shed. If anything, I'm more worried about heat build-up inside there during the summer so I'm adding more venting.
    ----Chris----
    25k IG/Spa Figure 8, 18x36, Pebble Sheen Blue Granite, Sta-Rite S8M150 Cartridge Filter, Pentair 460805 400k BTU Heater & 011018 IntelliFlo VarSpd
    Liquidator, Fafco Solar Heat, Polaris PB460 Booster Pump w/280 cleaner, Katchaleaf Cover, TF100 Test Kit, FAKE MAIN DRAIN

  8. Back To Top    #8

    TFP Guide

    chiefwej's Avatar
    Join Date
    Jun 2011
    Location
    Tucson
    Posts
    2,853

    Re: Replacing a Single speed pump with a Variable Speed

    As far as the warranty, if you know anyone who is a plumber, pool service, electrician, etc. for fifty bucks and a couple beers you can get a bill stating it was put in by a "qualified installer". That will get you a three year warranty. Also not bad to have someone double check your work, just in case you too had more than a couple beers during the install.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

  9. Back To Top    #9

    Join Date
    Aug 2015
    Location
    Arlington, TX
    Posts
    5

    Re: Replacing a Single speed pump with a Variable Speed

    Thanks for the advice everyone.
    My concern was the placement of the temp sensor on the pump. If it was to close to the motor it would warm up quickly and shut off, etc..
    I do know a licensed electrician that owes me a few cold ones, so I am checking on getting an invoice from him.
    I just didn't know if had to be a "pool specialist"
    All that being said, do any of you know if the Pentair VS has ports that I can put pressure gauges in before and after the pump to calculate head?

    Thanks.




    Quote Originally Posted by chiefwej View Post
    As far as the warranty, if you know anyone who is a plumber, pool service, electrician, etc. for fifty bucks and a couple beers you can get a bill stating it was put in by a "qualified installer". That will get you a three year warranty. Also not bad to have someone double check your work, just in case you too had more than a couple beers during the install.

  10. Back To Top    #10

    TFP Guide

    chiefwej's Avatar
    Join Date
    Jun 2011
    Location
    Tucson
    Posts
    2,853

    Re: Replacing a Single speed pump with a Variable Speed

    Nope no ports. For before the pump, I suppose the drain plug could be used. I added a flow gauge to my system when I put in the VS pump. I found one for about $35 and it seems to work fine, although once you get all your settings optimized you don't pay any attention to it. Re. The warranty, I asked Pentair what a "qualified installer" meant. They don't have a list or specific definition of who is qualified, so any plumber, electrician or pool service company, can arguably be used.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

  11. Back To Top    #11

    Join Date
    Aug 2015
    Location
    Arlington, TX
    Posts
    5

    Re: Replacing a Single speed pump with a Variable Speed

    Could you let me know where you found a flow meter for $35?
    The ones I am finding are much more.

    Thanks

  12. Back To Top    #12
    rdshackleford's Avatar
    Join Date
    Jul 2015
    Location
    Coatesville, PA
    Posts
    116

    Re: Replacing a Single speed pump with a Variable Speed

    FWIW, I self-installed a Hayward VS this year, it failed after one month, and Hayward shipped a replacement to me. They made me call a local Anthony & Sylvan dealer to have the replacement ordered and they insisted on doing the replacement, even though I had self-installed originally. I guess the only bummer about the warranty replacement was waiting for the installers to do it.
    29,085.1 gal inground grecian vinyl, Hayward Super Pump VS, Hayward S-240 sand filter, Dolphin Nautilus Plus (aka Agador Spartacus), Taylor K-2006 kit, nice pool brush, crappy leaf net, frogs

  13. Back To Top    #13

    TFP Guide

    chiefwej's Avatar
    Join Date
    Jun 2011
    Location
    Tucson
    Posts
    2,853

    Re: Replacing a Single speed pump with a Variable Speed

    Quote Originally Posted by shuman View Post
    Could you let me know where you found a flow meter for $35?
    The ones I am finding are much more.

    Thanks
    Here you go, $35 flow meter. Well, I guess I'm wrong, because it's $35.04. Make sure you get the right one. They are made for 1.5",2", 2.5" PVC. there are also side mount and top mount ones. Chose carefully, horizontal vs vertically mounting. Figure out where you will mount it before ordering.
    Rolachem Flowmeter 30 To 150 Gpm Top
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

  14. Back To Top    #14

    Join Date
    Aug 2015
    Location
    Arlington, TX
    Posts
    5

    Re: Replacing a Single speed pump with a Variable Speed

    chiefwej,
    Can't thank you enough for the advice and help.

    Shuman

Posting Permissions

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