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Thread: Re-Do filter plumbing

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    AV8TOR's Avatar
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    Dec 2008
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    Re-Do filter plumbing

    We have been living for 6 years at our house and the pool is 18 years old. My backwash valve has been hard to read for several years. I never felt like I could change it because there is not enough room on the piping to cut the pipe and add a coupling. This year it looks like my booster pump has died. So now I am thinking of re-building everything from the ground up. New back wash valve, new booster pump and new main filter pump and add all new pipe. Is there anything I should read first or be aware of before starting this? I have a fare amount of plastic pipe work but I am not a plumber. This seems like a very doable job I am just afraid of the "what I don't knows".

    I also want to take this time and replace my 2HP main filter pump with something smaller as I only have 15-16,000 gals. Not sure what size yet, but I know 2HP is too much. Thanks for any help
    16,000 gal IG Double Roman Plaster Pool (16yrs - plaster redone 2014)
    Pentair FNS-48 DE filter with WhisperFlo 2HP single speed pump
    Polaris 280 robot
    BBB all the way and tested with a TF100 kit
    Pool Calc user

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    Mod Squad jblizzle's Avatar
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    Re: Re-Do filter plumbing

    I re-did my pad having very little plumbing experience. Suggestions:
    - Use 2" pipe and fittings on the pad
    - Use pool valves like Neverlube type and not PVC ball valves
    - I spread my equipment out so that I have a lot of clean pipe between everything to make repairs easier
    - Try to reduce the number of turns, but not critical
    - Always use primer and solvent
    - If you are putting on unions REMEMBER to put the "nut" on the pipe BEFORE gluing on the mating surface
    - Measure multiple times
    - I marked the alignment of fittings before attaching them to make it easier to twist the fitting into the correct orientation quickly
    - Good idea to paint all the above ground pipe (2 years later, I have yet to do mine )

    I would think you should be looking in the 1HP 2-speed pump family ... like the Superflo or SuperPump. They also make small VS pumps now that could work for you if power is pricy and if you get rebates. Or maybe you could just use a new smaller 2-speed motor and impeller on your existing pump.
    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
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  3. Back To Top    #3
    AV8TOR's Avatar
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    Re: Re-Do filter plumbing

    I have a pretty simply mechanical timer to run my pumps, to take advantage of a two speed pump do I need a digital control box?
    16,000 gal IG Double Roman Plaster Pool (16yrs - plaster redone 2014)
    Pentair FNS-48 DE filter with WhisperFlo 2HP single speed pump
    Polaris 280 robot
    BBB all the way and tested with a TF100 kit
    Pool Calc user

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    Re: Re-Do filter plumbing

    You can just have a manual switch to select the speed. Alternatively, the new smaller VS pumps have timers built in that can switch the speeds (like run short time on a high speed and then a longer time on low speed) and the external timer controls the on/off function.
    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
    bobodaclown's Avatar
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    Apr 2011
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    Re: Re-Do filter plumbing

    A simple high/low switch works well. I leave mine in low 99% of the time. You can get fancier if you want.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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