Please help! New pond, pea green. Tried new filter, barley, algaecide, etc... Decided to go with UV clarifier. My question is, should I go with a clarifier + pump and just let it set in the bottom as another pump (I have a 1500 gph pump). Or, do I buy one that is inline and install it in my 1 1/4" line. If I do that, does the uv clarifier have to handle 1500 gph? Please help- my obsession has reached fever pitch for clear water!