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Thread: Sand filter pressure high after backwash

  1. Back To Top    #1

    Join Date
    Aug 2015
    oklahoma city, ok

    Sand filter pressure high after backwash

    I've been caring for this pool for 2 years. I know when its time to back wash by the spa over flow (and of course I monitor my pressure) I have been back washing and the sand filter pressure is not going down!! I used your method to clean my sand (no change). I do use my chlorinator and I took out all of the tablets and cleaned the grill. there were some small broken pieces down in the bottom. What should I be looking for?
    45,000 gal in ground pool with spa, 2 waterfalls, and slide, heater, sand filter, ozone with chlorinator, use the SLAM method and bleach method for shocking

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Sand filter pressure high after backwash

    Is the visual check of the spa overflow showing a problem, or does it look normal? It could just be a bad gauge.
    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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