I have an odd question that I would welcome your thoughts on. I have for the last couple of years contemplated on adding a cartridge filter down stream of my sand filter. It should work. The sand will get 95% of the trash and the cartridge will catch 99% of what the sand misses. Assuming flow rate of the cartridge is sufficient for the the pump I see no problems in doing this. Its advantage over cartridge is that I could backwash instead of disassembling the cartridge and cleaning it. I am guessing that cleaning the cartridge at the end of the season would be sufficient due to the sand catching most of the debris pre-cartridge?
Anyone tried it? Any thoughts on it?