Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: FNS plus DE filter rust inside.

  1. Back To Top    #1

    FNS plus DE filter rust inside.

    I just finished cleaning my DE filter and discovered some rust on the wingnuts that hold the grids in place. Also there is a metal band that runs around the inside of the lower half of the filter shell that has developed some surface rust. This is the first year i have seen this. Additionally I was having issues with stains in the pool at the end of last season.

    I had a big fight with low ph last year and think this is the cause. Will the surface rust on the wingnuts and interior metal band adversley effect the pool this season?
    10,000 gallon
    Viking Freeform Fiberglass Inground Pool. FNS Plus DE Filter Pentair Challenger .75hp pump


  2. Back To Top    #2

    Join Date
    Mar 2007
    Coastalish 'down easter'

    Re: FNS plus DE filter rust inside.

    Hey, Thinkly

    While I don't want to tell you the FNS is failing, I would certainly change the wing-nut and address/ fix the band's rust.

    If you had a low pH issue last season, I'd say that it exasperated the issue - and keep better control of your pH this season

    I am never one to tell someone to 'just replace' pool equipment but, do all you can to keep your filter serviceable until you are ready to replace it, and that day may be coming more quickly than you'd like

    I believe that with a little TLC and halting the rust ASAP, you can get another season or 2+ from your filter without risking stains

    Let us know how things are going
    Luv& Luk

    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