Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: Chemical Cleaning Fingers on EC65a DE Filter

  1. Back To Top    #1

    Chemical Cleaning Fingers on EC65a DE Filter

    What is the best product to use? How long do you let soak, etc...?
    18x37 IG 22,500 gallons...Vinyl Liner...Hayward EC-65 DE Filter...Hayward 1HP Super Pump...Aquarite SWG...TF-100 test kit.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    Normally, for a DE filter, rinsing the grids/fingers off with water is sufficient. If there is stuff that won't come off with just water you can soak them in detergent. Ideally, for that, you want to use TSP (trisodium phosphate), but that is often difficult to find. The best alternative is automatic dish washer detergent. Typically you use one cup of TSP/detergent in a garbage pail of water and allow to soak overnight, then rinse off.
    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

  3. Back To Top    #3
    Guest
    A soft bristle brush can be used to gently scrub the grids also.

  4. Back To Top    #4
    I soaked them overnight in TSP. The fingers are still brown colored. Should they come out white? Thanks
    18x37 IG 22,500 gallons...Vinyl Liner...Hayward EC-65 DE Filter...Hayward 1HP Super Pump...Aquarite SWG...TF-100 test kit.

  5. Back To Top    #5
    Guest
    Quote Originally Posted by harpfamily
    I soaked them overnight in TSP. The fingers are still brown colored. Should they come out white? Thanks
    Did you use REAL trisodium phosphate or the TSP substitute that is sold in many localities today? If you used a substitute then try soaking them in automatic dishwasher powder such as cascade or electrosol. Use one cup per every 5 gallons of water and soak for at least one hour to overnight, use a soft brush to carefully scrub the grids if anything is sticking to them and then hose them off. If they are showing calcium or metal stains after that then soak them in a dilute muriatic acid solution for about 20-30 minutes or until the bubbling stops. Use 1 cup acid to every 5 gallons of water. Next time you soak you can add the acid and dishwasher detergent or TSP at the same time and only soak once! You can also use a commercial acid based cleaner but it really doesn't work any better or faster and will cost you a lot more to use!

  6. Back To Top    #6
    I used TSP that was phosphate FREE. Does that make a difference? Thanks for all the help once again.
    18x37 IG 22,500 gallons...Vinyl Liner...Hayward EC-65 DE Filter...Hayward 1HP Super Pump...Aquarite SWG...TF-100 test kit.

  7. Back To Top    #7
    i hate to say it but i use acid although it is not recommend by the manufacture i do it anyway and they come out white and looking good
    what i do is take a garbage can fill it with water pour the acid in and leave the nest to soak overnite give it a good rinse in the morning and put it all back together
    remember be careful with the acid
    i do know that is not the best thing for the filter so try not to kill me over this pratice
    it will work
    thanks

  8. Back To Top    #8
    Guest
    Quote Originally Posted by harpfamily
    I used TSP that was phosphate FREE. Does that make a difference? Thanks for all the help once again.
    Yes, you did not use TSP (which stands for Tri Sodium Phosphate) but a different chemical, most likely sodium carbonate, which is not as effective a degreaser! (It's the same chemical used in pH increaser, just washing soda AKA soda ash or sal soda!) Try soaking in automatic dishwasher detergent like I suggested above. TSP CANNOT be phosphate free! You used a TSP substitute! If after soaking there is still staining or scale then use the acid as I suggested above. Be aware that acid washing can shorten the lifespan of the grids but it it necessary at times! Just remember to degrease before you acid wash or to combine them as I suggested above.

  9. Back To Top    #9

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160
    Harpfamily, welcome to TFP!

    If you go the acid wash route only fill the container enough to soak the fingers - there are metalo screws and clips that would be weakened by the acid
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

Posting Permissions

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