Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 11 of 11

Thread: Filter Replacement Sizing Advice Requested

  1. Back To Top    #1
    tschaefges's Avatar
    Join Date
    Jun 2008
    Location
    Sidney, IL
    Posts
    35

    Filter Replacement Sizing Advice Requested

    I have a 5-year old 17'x29' rectangular Splash Superpool that holds 15,000 gallons. The dealer included a Sta-Rite Hi-Rate sand filter (P/N JSAL180E-58 also marked T-180WF) and a 1hp Sta-Rite pump (P/N ABG4E-2A4). The plastic base that holds the filter and pump cracked and will need to be replaced. This may be a good time for me to upgrade the filter and I would like some size advice.

    The pool is used almost exclusively for our dogs and their canine friends. It's not uncommon for us to have 6-10 dogs in the pool four or five days a week. I have been able to keep the chemistry in line, but the dogs carry a lot of particulate matter into the pool which often results in cloudy water. It is sometimes a struggle to keep the water as clear as I'd like.

    The sand filter label says it's 1.57 sqft and I am wondering if it would be worth switching to a bigger filter. If so, how big should I go? If I upsize, can I keep the 1hp pump? Is bigger always better, or is there a point of diminishing returns?

    Thanks!

    Tom
    17' x 29.5' x 4' Splash Superpool AGP, 15,000 gal, Hayward S244T sand filter, Sta-Rite ABG4E-2A4BBB 1hp pump, BBB / TF100 test kit
    East-Central Illinois

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Filter Replacement Sizing Advice Requested

    For a 15k pool, I would recommend a ~23" sand filter. The bigger filter reduces the frequency of having to backwash. Your existing pump will be fine although should consider a 2-speed motor when you pump eventually dies to save some money on power.

    Cloudy water is generally due to lack of FC ... if you are going to have heavy use, smart to bump up the FC either before or after. Not uncommon to get a little cloudy during heavy use though.

    With all the dog, you should likely use a skimmer sock to keep the hair out of the filter.
    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!

  3. Back To Top    #3
    tschaefges's Avatar
    Join Date
    Jun 2008
    Location
    Sidney, IL
    Posts
    35

    Re: Filter Replacement Sizing Advice Requested

    Thanks, Jason!

    We always have a sock on the skimmer. It's amazing how much hair it catches, especially when a new dog has been in the pool.
    17' x 29.5' x 4' Splash Superpool AGP, 15,000 gal, Hayward S244T sand filter, Sta-Rite ABG4E-2A4BBB 1hp pump, BBB / TF100 test kit
    East-Central Illinois

  4. Back To Top    #4
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,489

    Re: Filter Replacement Sizing Advice Requested

    tschaefges,

    How often were you backwashing your current filter?
    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

  5. Back To Top    #5
    tschaefges's Avatar
    Join Date
    Jun 2008
    Location
    Sidney, IL
    Posts
    35

    Re: Filter Replacement Sizing Advice Requested

    I backwash when the pressure rises 8-10 psi over my clean reading. I'd say on average that's every 10-14 days, sooner if I have added DE to the filter. I should probably track that more closely.


    Tom
    17' x 29.5' x 4' Splash Superpool AGP, 15,000 gal, Hayward S244T sand filter, Sta-Rite ABG4E-2A4BBB 1hp pump, BBB / TF100 test kit
    East-Central Illinois

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Filter Replacement Sizing Advice Requested

    We recommend backwashing when the pressure rises 20-25% over the clean pressure, which is probably more often than you were doing. Thus the larger filter I think would make sense in your case.
    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!

  7. Back To Top    #7
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,489

    Re: Filter Replacement Sizing Advice Requested

    What is your normal clean filter pressure? I am just trying to scale your current filter.
    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

  8. Back To Top    #8
    tschaefges's Avatar
    Join Date
    Jun 2008
    Location
    Sidney, IL
    Posts
    35

    Re: Filter Replacement Sizing Advice Requested

    I made a mistake above. My normal clean pressure is 10 psi. I backwash at 13-14 (not 18!).
    17' x 29.5' x 4' Splash Superpool AGP, 15,000 gal, Hayward S244T sand filter, Sta-Rite ABG4E-2A4BBB 1hp pump, BBB / TF100 test kit
    East-Central Illinois

  9. Back To Top    #9
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,489

    Re: Filter Replacement Sizing Advice Requested

    The plastic base that holds the filter and pump cracked and will need to be replaced.
    Can't you just take the filter and pump off the base?

    But if you do replace the filter, doubling the size will more or less double the time between cleaning if that is of interest.
    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

  10. Back To Top    #10
    tschaefges's Avatar
    Join Date
    Jun 2008
    Location
    Sidney, IL
    Posts
    35

    Re: Filter Replacement Sizing Advice Requested

    I'll have to take the pump off the base, but then I also need to find something to which to mount it and something for the filter to stand on. I'll get another base if I keep the same filter, but I thought this might be a good time to upgrade if it made sense. The dogs carry a lot more stuff into the pool than people do.
    17' x 29.5' x 4' Splash Superpool AGP, 15,000 gal, Hayward S244T sand filter, Sta-Rite ABG4E-2A4BBB 1hp pump, BBB / TF100 test kit
    East-Central Illinois

  11. Back To Top    #11
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Filter Replacement Sizing Advice Requested

    You don't need a special stand. Mine are sitting on pavers, others use the plastic air conditioner pads, or pour a cement slab.
    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!

Posting Permissions

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