Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 15 of 15

Thread: Pump Run Time

  1. Back To Top    #1
    rgrecco's Avatar
    Join Date
    Aug 2015
    Location
    Fredericksburg, VA
    Posts
    8

    Pump Run Time

    Hey Everyone... Need a little help here...

    I have a 14x28 rectangle pool w/ 4x8 steps (total about 15000 gal)

    I have a Hayward 1HP Superpump (SP2607X10) and am getting a PSI of 14 at the filter...

    I want to factor in the worst case so i backwash at 20psi...

    Am i right in saying 20psi = 47 feet of head? Ifso at 20psi the pump would be putting out a little more then 40gpm based on the following chart?

    SuperPump-Specs.jpg

    IF thats right and i have a 15000 pool I should be able to run 6.25 hrs and filter all 15000 gallons...

    I plan on filtering the whole pool twoce in 24 hrs so i would he running 12.5 hrs a day...

    Is my math correct with the PSI to FEET OF HEAD?

    I just wanna try to save a few bucks on the electric bill... I know a good practice is turn it on and let it run 24/7...
    Steel Frame Vinyl Liner ~14,000 gal. IGP [14'x28' (3' shallow - 6' deep) w/ 8' Side Entry Steps]
    1hp Hayward SuperPumps
    Hayward Pro-Series Top Mount Sand filter
    Hayward T-9 Salt Cell

  2. Back To Top    #2


    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Location
    Fletcher, OK
    Posts
    3,346

    Re: Pump Run Time

    Really that is not what we recommend (24/7) and what it boils down to is how "clean" looking you would like your water

    Check this page out but we recommend starting at 4 hours with 1 speed and 8 hours with 2 speed and go from there

    Pool School - Determine Pump Run Time

    I hope this helps
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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

    Re: Pump Run Time

    Agree with Casey. Pool turnover is not meaningful in residential pools. All that is needed is to run long enough to get the pool clean. Usually 2-4 hours is good unless you have lots of trees. Many people split the run time to morning and evening for more effective skimming. 1-2 hours am and 1-2 hours pm. It is not a good practice to run 24x7 unless your pool gets debris in it like mine does because we have lots of trees.

    We also recommend backwashing/cleaning your filter when the pressure rises 20-25% over clean pressure.
    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: Pump Run Time

    Agree with the others.

    I will just point out that determining head loss is not as simple as reading a chart. It is a fairly involved calculation that takes all of your pool's setup.

    Luckily there is really no reason to need to know the head loss.
    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
    rgrecco's Avatar
    Join Date
    Aug 2015
    Location
    Fredericksburg, VA
    Posts
    8

    Re: Pump Run Time

    Quote Originally Posted by pooldv View Post
    Agree with Casey. Pool turnover is not meaningful in residential pools. All that is needed is to run long enough to get the pool clean. Usually 2-4 hours is good unless you have lots of trees. Many people split the run time to morning and evening for more effective skimming. 1-2 hours am and 1-2 hours pm. It is not a good practice to run 24x7 unless your pool gets debris in it like mine does because we have lots of trees.

    We also recommend backwashing/cleaning your filter when the pressure rises 20-25% over clean pressure.

    Will that time allow for a Salt Generator to produce enough chlorine
    Steel Frame Vinyl Liner ~14,000 gal. IGP [14'x28' (3' shallow - 6' deep) w/ 8' Side Entry Steps]
    1hp Hayward SuperPumps
    Hayward Pro-Series Top Mount Sand filter
    Hayward T-9 Salt Cell

  6. Back To Top    #6
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Pump Run Time

    Quote Originally Posted by rgrecco View Post
    Will that time allow for a Salt Generator to produce enough chlorine
    That depends on the chlorine demand and the size of the cell.

    If your kids have a bunch of friends and the pool is in constant use by dozens of people, you will obviously have higher FC consumption than a pool that two adults soak in for an hour after work. Which SWG do you have? It's easy enough to determine ppm per day if you know the maximum output of the cell, which will let you figure out hours to FC.

    As far as a turnover, that doesn't work unless you're pumping and filtering the water from one pool to another so 100% of it goes through the filter. What happens is a continuous filtering and dilution, such that if 25% of the pool's volume has been filtered, in reality maybe only actually 20% of the water has been filtered. The other 5% got filtered again and again. Don't quote me on those figures, I'm just using them as a for-example.

    Three hours a day is plenty for me, maybe even too long. The surface trash usually disappears within twenty minutes.

    Start yourself at 6 hours per day for a week or so. If the water stays nice, drop to 5 and raise the SWG % to compensate. After a week if it still looks good, reduce it to 4. Just keep lowering pump run time and raise SWG% to compensate and you'll save a bunch of money on the electric bill. (3 hrs running at 60% generates the same FC as 6 hours at 30% or 9 hours at 20% and so on)
    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!

  7. Back To Top    #7
    rgrecco's Avatar
    Join Date
    Aug 2015
    Location
    Fredericksburg, VA
    Posts
    8

    Re: Pump Run Time

    I have a Hayward T9 Salt Cell.

    I currently have it set at 50% running 24/7 for startup...

    I am going to be lowering the time on my timer to be on:
    8a-10:30a, 2:30p-5p, 11:30p-1:30a

    Any recommendations on Salt Cell Percentage Setting?

    Sorry for my ignorance if these are stupid questions. This is my first full season with a pool....
    Steel Frame Vinyl Liner ~14,000 gal. IGP [14'x28' (3' shallow - 6' deep) w/ 8' Side Entry Steps]
    1hp Hayward SuperPumps
    Hayward Pro-Series Top Mount Sand filter
    Hayward T-9 Salt Cell

  8. Back To Top    #8
    Mod Squad kimkats's Avatar
    Join Date
    Jul 2012
    Location
    Tallahassee, FL
    Posts
    26,732

    Re: Pump Run Time

    PLEASE ask any and all questions. That is the only way your pool will stay looking like a jewel!

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

  9. Back To Top    #9


    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Location
    Fletcher, OK
    Posts
    3,346

    Re: Pump Run Time

    No stupid questions here you will need to set that schedule and test your FC to see if it is meeting your CYA/FC level. Every pool and setup is different so each will be setup different..

    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

  10. Back To Top    #10
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Pump Run Time

    A little googling seems to indicate a T9 can output .9 lbs of Chlorine gas. 14 ounces.
    Effects of Adding Chemicals at the bottom of poolmath says 14 oz of gas in 15000 gallons of water is 7 FC.

    So... 7/24 is .3 FC/hour at 100%. 7 hours run time per day at 100% would make 2.1 FC, which is a reasonable amount of FC loss. So start at 100% and if FC keeps climbing, turn it down a little until it never dips below minimum.
    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!

  11. Back To Top    #11
    rgrecco's Avatar
    Join Date
    Aug 2015
    Location
    Fredericksburg, VA
    Posts
    8

    Re: Pump Run Time

    THANKS Richard!

    Will give it a shot.

    Gonna have to get me one of those expensive test kits. I'm using AquaChek 7 way strips at the moment because i have 3 bottles of them amd would hate to waste them.
    Steel Frame Vinyl Liner ~14,000 gal. IGP [14'x28' (3' shallow - 6' deep) w/ 8' Side Entry Steps]
    1hp Hayward SuperPumps
    Hayward Pro-Series Top Mount Sand filter
    Hayward T-9 Salt Cell

  12. Back To Top    #12
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Pump Run Time

    Expensive? It is cheaper than the average trip to the pool store!
    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

  13. Back To Top    #13
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Pump Run Time

    Quote Originally Posted by rgrecco View Post
    THANKS Richard!

    Will give it a shot.

    Gonna have to get me one of those expensive test kits. I'm using AquaChek 7 way strips at the moment because i have 3 bottles of them amd would hate to waste them.
    Test strips?

    You might as well just swish it around in your mouth and taste for chlorine.
    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!

  14. Back To Top    #14
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,999

    Re: Pump Run Time

    LOL! I prefer to dip a finger in the water, hold it up to the wind and pick a random number.
    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

  15. Back To Top    #15
    borjis's Avatar
    Join Date
    Aug 2014
    Location
    Pacific NW
    Posts
    2,058

    Re: Pump Run Time

    LOL!!!
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
    Dolphin E10 Cleaning Robot.

Posting Permissions

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