I'm currently using a Pentair Triton II Sand Filter. In an effort for better water clarity I'm considering switching to a DE filter. The Sta-Rite System 3 Modular D.E. Filter S7MD72 system uses a "cartridge" style system to suspend the DE rather than a "grid" system. Two questions:
1) Does anyone have any experience with this DE Modular system? and
2) Since the sand filter is already a sunk cost, I was considering keeping it and adding the DE filter after it, to prolong the time between DE maintenance. Any feedback?