I have a KDI DE filter 48 SQ FT Model NO. 584090, Length 22 IN, Width 22 IN, Height 52 IN. I cleaned the grids last season and during the process noticed they were not in good shape. I am considering replacing them all including both manifolds and was wondering if the grids/manifolds are generic for all 48SQ FT filters or I have to look for specific ones to fit. Any guidance or recommendations will be greatly appreciated.
Filter grid replacement
- Thread starter eddiembabaali
- Start date
I am not sure what the KDI filter is ... I do think the Pentair and Hayward grids are interchangeable. The Unicel that I bought as replacements I think said it could be used in either of the manufacturer's filters.
There is a sticker on it that says "KDI AMERICAN DIATOMACEOUS EARTH FILTER". Somewhere off the sticker it says American Products.
One of those old stainless steel jobs!
Good news for you. I used the search box: http://www.troublefreepool.com/threads/39875-Difference-in-DE-filter-models Post 10 -13 should help..
Good news for you. I used the search box: http://www.troublefreepool.com/threads/39875-Difference-in-DE-filter-models Post 10 -13 should help..
I went ahead and ordered a complete set from poolplaza (American Titan CM or S/S 48 sq. ft. Grid Assembly (Grids24 inches tall)(59002500) use(59023400) ). I ordered it yesterday afternoon and it was here at 10:30am. Free shipping and excellent service. It fit just right but my pressure is quite low 5 Psi. Will check on it later to see if it rises because I put 6Pounds of DE and replaced pressure relief valve as well.
Eddie
Eddie
Always something new to learn. I always assumed starting pressure had to be > 10psi. The old broken filter actually started with 17 Psi last year and this year.
With the lower pressure (resistance through the filter) your flow rate should feel higher. As long as the flow is good, don't sweat it 
When mine runs on low speed, the pressure barely registers as 2psi.
When mine runs on low speed, the pressure barely registers as 2psi.