I am wondering how often a whole filter assembly would need to be replaced. I am only asking because I feel as if my pool filter is fairly old but not sure on exact age. I am only asking becuase last year and this year I have been having an issue getting my filter to fully seal off so that it is not leaking. Last year I used some silicone sealant last year and this year to get it all removed was a little harder. This year I tried to get a new seal and the one made for my filter was too big. This was pair the book and the same thing online. So this year I use some sealant again, but does not seem to be sealing off that well. I may have to take it off and redo the sealant again. to see if I can get it to seal. The rubber seal does have a few nicks on it and has a slight cut in it as well. I dont want to have to go through this issue each year when I need take apart and clean it. Is there sometimes a date listed on the filter or anything?
Here is the filter I have
Pac Fab Nautilus Stainless Steel DE Filter Parts NS36
http://www.poolcenter.com/parts_filter_ ... us_nsp.htm
So anyone know an approximate cost it would be to replace this?