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Thread: VS pump schedule not changing

  1. Back To Top    #1
    txnole's Avatar
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    Question VS pump schedule not changing

    Good morning. I'm obviously missing something on a new pump schedule I programmed last night.

    I intended to set my VS to run at a higher speed for one hour and then ramp down to low speed; instead, it's just running at high speed continuously.

    This was my original schedule:

    POOL FEATURE - regular pool swim mode 1400 RPM
    Monday - Friday 11:00a - 6:00p
    Saturday - Sunday 10:00a - 6:00p


    And I added this feature & schedule last night:


    FEATURE 2 - extra skimming mode 2600 RPM
    Monday - Friday 10:00a - 11:00a
    Saturday - Sunday 9:00a - 10:00a

    It is now Saturday at 10:30a, but the pump is still turning at 2600.

    I have verified that the days of week are programmed correctly and that my AMs/PMs are correct. Still, the pump did not "spin down" to 1400.

    I've gone through it a dozen times this morning. What am I missing? What can I re-check and verify? Thanks!!
    COMPLETED BUILD THREAD - 15'x29' rectangular offset shotcrete pool; 14,100 gal; 5'x7' raised spa with 400k btu fire feature; 7' spillover; 25' leuder stone raised bond wall w/waterfall; Pentair SWG; Pentair VS (pool); Pentair 3/4hp feature pump; 1hp spa blower; Pentair Cartridge filter; Pentair “Easy Touch 8” wireless; Dolphin Oasis Z5 robot; Solar Hydronics iSwim solar panels; Mansard Screen Enclosure; walnut travertine deck; 1 very happy kiddo.

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    JasonLion's Avatar
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    Re: VS pump schedule not changing

    What you describe should work. So something else you haven't noticed yet must be going on.

    By the by, there really isn't any point in ramping up the speed for one hour a day unless you have something that specifically requires it (like a pool cleaner powered by the main pump). You want your normal speed to be the lowest speed that skims effectively. Your total pump run time is also significantly longer than you probably need. Four hours a day is normally enough for a residential pool.
    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

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    txnole's Avatar
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    Re: VS pump schedule not changing

    Thanks, JasonLion. I was thinking I must have it correct as well. For grins, I just powered down the unit at the breaker and let everything come back up. Now it's working on the regular pool schedule. I'm not sure how or why, but I'll just have to wait and see what works.

    Regarding programming and run time, I suspect we are running long;however, my wife loves to sit out by the pool and listen to the spillover while the kiddo is at school. After school, we're getting a lot of swim time, so I just have it running. I take from your reply that ramping up for skimming is probably a waste, right?
    COMPLETED BUILD THREAD - 15'x29' rectangular offset shotcrete pool; 14,100 gal; 5'x7' raised spa with 400k btu fire feature; 7' spillover; 25' leuder stone raised bond wall w/waterfall; Pentair SWG; Pentair VS (pool); Pentair 3/4hp feature pump; 1hp spa blower; Pentair Cartridge filter; Pentair “Easy Touch 8” wireless; Dolphin Oasis Z5 robot; Solar Hydronics iSwim solar panels; Mansard Screen Enclosure; walnut travertine deck; 1 very happy kiddo.

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    txnole's Avatar
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    Re: VS pump schedule not changing

    As an aside, how do you quantify skimming effectively?
    COMPLETED BUILD THREAD - 15'x29' rectangular offset shotcrete pool; 14,100 gal; 5'x7' raised spa with 400k btu fire feature; 7' spillover; 25' leuder stone raised bond wall w/waterfall; Pentair SWG; Pentair VS (pool); Pentair 3/4hp feature pump; 1hp spa blower; Pentair Cartridge filter; Pentair “Easy Touch 8” wireless; Dolphin Oasis Z5 robot; Solar Hydronics iSwim solar panels; Mansard Screen Enclosure; walnut travertine deck; 1 very happy kiddo.

  5. Back To Top    #5
    JasonLion's Avatar
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    Re: VS pump schedule not changing

    Assuming you have a good circulation pattern setup, the skimmers should be able to pick up most surface debris in roughly half an hour after a period when the pump was off. With that working at some medium speed you can turn down the pump speed and at some lower speed you will find that the skimmer(s) first slow down and then stop skimming effectively and simply cease to clear most of the debris. The more skimmers you have, the more obvious this effect is. With only a single skimmer it is often impossible to slow the pump down enough to notice this effect. Clearing the majority of debris in half an hour is a good benchmark, though this can be disrupted by sufficient wind.
    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

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    txnole's Avatar
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    Re: VS pump schedule not changing

    Ok. Thanks for the tip!
    COMPLETED BUILD THREAD - 15'x29' rectangular offset shotcrete pool; 14,100 gal; 5'x7' raised spa with 400k btu fire feature; 7' spillover; 25' leuder stone raised bond wall w/waterfall; Pentair SWG; Pentair VS (pool); Pentair 3/4hp feature pump; 1hp spa blower; Pentair Cartridge filter; Pentair “Easy Touch 8” wireless; Dolphin Oasis Z5 robot; Solar Hydronics iSwim solar panels; Mansard Screen Enclosure; walnut travertine deck; 1 very happy kiddo.

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