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Thread: Pump Running 24/7 with D.E. Filter - Ok or Problem?

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    Pump Running 24/7 with D.E. Filter - Ok or Problem?

    My pool is running good, no issues known, water & tests all ok.

    Is it ok to run the main recirculation pump continuously 24/7 with a D.E. Filter? Someone told me once that a D.E. Filter shouldn't have the pump running more than 48 hours continuously as it will "super-pack" the D.E. onto the Grids.

    Currently, I run my pump about 14-15 hours/day on a timer. Over the years, I've run the pump 8 hrs/day, 10 hrs/day, all without issues.

    I think, with a 15k pool, it takes about 8 hrs to get 1 complete recirculation water turnover but that's only a rough estimate based on what a pool guy told me years ago.

    I rarely run the pump overnight or more than 24 hrs continuously unless there's an unusual issue occurring, treatment of water, etc.

    I read the SLAM procedure and it says that the pump should be running 24/7 until the SLAM results are good. I haven't had to SLAM the pool but was curious after reading that in the procedure and what someone told me about D.E. Filters and pumps running 24/7 .
    - Pool Type: 15k Gal Gunite IG non-SWG / Built 1988
    - Pump: Pentair Challenger / Sweep Pump: Letro Model LA01N .75HP Single-speed / 6 hrs-day (1 turnover)
    - D.E. Filter: OEM: Nautilus (Pentair) #NS 36 / 36 Sq Ft / D.E. Charge: 3.6 Lb
    - Pentair 4-wheel Sweep LL505G - Booster Pump runs ~2 hrs/day

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    Richard320's Avatar
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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    Sounds like BS to me. The DE is all packed against the screens within seconds of startup and the pressure doesn't get any higher unless the grids get packed with debris they're straining out - which is what they're supposed to do anyway. That's what filters do.

    Running 24 hours won't harm anything but your wallet. And you might as well forget that whole turnover malarkey as well. The only way that would work was if you were drawing all the water out of the pool and sending the filtered water tyop a separate pool. The clean mixes with the dirty so you never get 100% filtration no matter how many hours you run it. I manage just fine on a mere 3 hours a day. Pool School - Determine Pump Run Time
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    Thanks for the info. I think I'll try running the pump less per day and see how the pool reacts to it.
    - Pool Type: 15k Gal Gunite IG non-SWG / Built 1988
    - Pump: Pentair Challenger / Sweep Pump: Letro Model LA01N .75HP Single-speed / 6 hrs-day (1 turnover)
    - D.E. Filter: OEM: Nautilus (Pentair) #NS 36 / 36 Sq Ft / D.E. Charge: 3.6 Lb
    - Pentair 4-wheel Sweep LL505G - Booster Pump runs ~2 hrs/day

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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    I use the TFP method and run my 38,000 gal pool 5 hours per day with no problem and it gets HOT here. My chems remain balanced per TFP recommendations and I can still see the phillips head screws clearly that attach my drain cover at my 10' deep end. Winter time I cut it down to 4 hours. According to flow rate specs for my pump with a 12' head height, it should turn my water over ( I should say send all the water through the pump) in 4 hours.
    38000 Gal, IG, Plaster, 20' x 40' x 10', Attached Raised Spa, Intelliflo VS 3 HP (011018), Pentair Quad DE 60 Filter, Raypak (Rheem) 400,000 BTU (407a low Nox), Easy Touch 8 upgrade, Screenlogic 2 with wireless, IS-4 Spa Side Remote, Stenner 45MPHP10 w/15 gal tank, Intellibrite 5g (3), Dolphin Triton Plus robot with PRO remote, Water Tech Catfish handheld vacuum for spa, TF100 with SpeedStir.

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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    how long you run it also depends on your gpm/flow. you cant run 700rpm on a VS and expect to get enough filtration to work well. i run 1500 rpm for 9-12 hours a day.
    19K IG Pebbletec with attached spa. 60sqft Cartridge filter, Intelliflow VS, 399k BTU Gas Heater, Pentair IC40. Phoenix, AZ, full sun.

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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    Quote Originally Posted by isriam View Post
    how long you run it also depends on your gpm/flow. you cant run 700rpm on a VS and expect to get enough filtration to work well. i run 1500 rpm for 9-12 hours a day.
    That kind of relates to my 2 HP pump running at 3450 RPM for 5 Hrs.
    38000 Gal, IG, Plaster, 20' x 40' x 10', Attached Raised Spa, Intelliflo VS 3 HP (011018), Pentair Quad DE 60 Filter, Raypak (Rheem) 400,000 BTU (407a low Nox), Easy Touch 8 upgrade, Screenlogic 2 with wireless, IS-4 Spa Side Remote, Stenner 45MPHP10 w/15 gal tank, Intellibrite 5g (3), Dolphin Triton Plus robot with PRO remote, Water Tech Catfish handheld vacuum for spa, TF100 with SpeedStir.

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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    gary300

    Thanks. Hot here too (Dallas) . From reading the thread, I'm sure my pump is running longer than necessary. I've been looking into a Flow Meter lately as I've never installed one on my pool lines and it seems like it would be a nice data point to have available for troubleshooting or calculating pump flows.

    I've been looking at the FlowVis meter lately and reading threads at this forum about other members that have them installed, gathering information for now to see if I'll get this meter.

    Richard320

    Thanks for the info. 3 hours pump running time, that's amazing. I'd never have figured a pool in the summer would be able to remain clean with that short of a pump running time. I learn something new every time I visit this forum .

    isriam

    Thanks for the gpm/flow info. My Pool Pump is unfortunately the only equip component that I have no info (the template and pump is many years old, unreadable, and I didn't record that info years ago). It would be interesting to know the gpm output at a time when my pool is running good.


    I have an unrelated question about adding normal Bleach (for routine dosing, not SLAM or shocking) and the pump recirculation.

    I usually add my Bleach dose around 5pm in the summer as that's when my pool is completely shaded by a tree nearby. I recall that I extended my pump running time to about 9-10pm (my current pump timer is on at 8am, off at 10pm) so that it would have a few hours of running after adding Bleach.

    Assuming the pool is balanced (all readings good, water clear) is it necessary for the pump to remain running for a period of time after adding routine Bleach doses?
    - Pool Type: 15k Gal Gunite IG non-SWG / Built 1988
    - Pump: Pentair Challenger / Sweep Pump: Letro Model LA01N .75HP Single-speed / 6 hrs-day (1 turnover)
    - D.E. Filter: OEM: Nautilus (Pentair) #NS 36 / 36 Sq Ft / D.E. Charge: 3.6 Lb
    - Pentair 4-wheel Sweep LL505G - Booster Pump runs ~2 hrs/day

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    Richard320's Avatar
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    San Dimas, CA (LA County)
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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    Assuming the pool is balanced (all readings good, water clear) is it necessary for the pump to remain running for a period of time after adding routine Bleach doses?
    We usually say 30 minutes between chemical additions and after adding anything. You can shorten that by brushing all around the pool to set up cross currents.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Join Date
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    Location
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    Posts
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    Re: Pump Running 24/7 with D.E. Filter - Ok or Problem?

    10-4. Thanks for the info.

    - Pool Type: 15k Gal Gunite IG non-SWG / Built 1988
    - Pump: Pentair Challenger / Sweep Pump: Letro Model LA01N .75HP Single-speed / 6 hrs-day (1 turnover)
    - D.E. Filter: OEM: Nautilus (Pentair) #NS 36 / 36 Sq Ft / D.E. Charge: 3.6 Lb
    - Pentair 4-wheel Sweep LL505G - Booster Pump runs ~2 hrs/day

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