Quote:
Originally Posted by Hugh R
Bivenator, hadn't thought to check the backwash valve/gasket. I'll check that before I look at other options. New grids from Amazon are about 1/2 the cost of the ones from the local pool supply.
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BW valve seals are surely a possibility. Also a missing standpipe o ring, crack in the manifold, or missing air relief screen at the top of the manifold. Everything matters. That filter is also at least 30 yrs old so have a good look at the condition of the tank in the clamp band area. Lots of rust means the same on a filter as a 914.
If the tank is still in good shape without a lot of pitting around the waistband edges, replace the grids and o rings and you are good for another 5 years. Heavy pitting or cracks in the stainless and I don't trust the tank any more. Better off with all new.
JMHO