Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: Acid Washing a D E Filter

  1. Back To Top    #1

    Join Date
    May 2015
    Location
    Kings Park
    Posts
    2

    Acid Washing a D E Filter

    My de filter has not been acid washed in a few years. Do I need to remove the grids from the filter, or can I just fill the filter with the acid cleaner?

    Thanks all
    Slats

  2. Back To Top    #2
    Mod Squad zea3's Avatar
    Join Date
    Jul 2009
    Location
    Houston, Texas
    Posts
    9,198

    Re: Acid Washing a D E Filter

    You must clean the grids with dishwasher powder or tsp first. Then soak the grids in a the acid solution after all the previous solution has been hosed off. Do not soak them in the filter body. Use a plastic tub to soak them.
    TFP Moderator
    Helpful links: TF Test Kits,TFP Pool School, PoolMath
    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
    Love TFP? Become a
    TFP Supporter!

  3. Back To Top    #3

    Join Date
    May 2015
    Location
    Kings Park
    Posts
    2

    Re: Acid Washing a D E Filter

    Thank you for the info. The issue I have is the pool company who closed my pool in the fall glued the grid manifold into the filter body. I would have to crack the pvc tube off and replace it in order to get the grids out. What would happen if I soaked the grids in the filter body? Thanks again
    Slats

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Acid Washing a D E Filter

    Are you sure it is glued and the manifold is not just stuck on the standpipe o-ring?
    Can you post up pictures?

    Take a look at DE Filter Cleaning Tutorial
    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

    Re: Acid Washing a D E Filter

    Are you sure that the manifold is glued in? Sometimes they're just hard to get off of the standpipe. If it's really glued in, I think that the standpipe is just 2" pvc pipe. You could cut the pipe to get the grids out and then use a 2" schedule 40 pvc coupling the put it back together. Just be sure to get the height of the standpipe back to its original length. Once you get the grids apart, hose them down. That's usually enough. If they need more than that, it's probably time for new grids. You could soak them in tsp. Acid is rarely needed and should be avoided as much as possible.

  6. Back To Top    #6

    Re: Acid Washing a D E Filter

    Update: The standpipe is 2" pvc. If the manifold really is glued, you can cut the pipe and reconnect it with a regular schedule 40 pvc coupling. A few tips:

    1) If you do cut the pipe, measure the height of the manifold before cutting the pipe and make sure the height is exactly the same when reinstalling. The coupling will add about a 1/4", so you would have to cut out about that much to avoid the manifold being too high.

    2) When cutting the pipe, put something between the pipe and grids to avoid cutting the grids.

Posting Permissions

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