| Let's start with some basics Cindy. Each BD needs a min. of 2500 gph for line sweep, or 7500 gph total. If I was desigining this pond I would go with one large settlement chamber or 3 smaller ones, then gravity feed through one large or 3 smaller fluid bed bio filters, then one large or 3 small sand/gravel mech. filters then a sure pro 8500 or 3 sure pro 3500s feeding the tprs.
I have several fluid bed and sand/gravel filters in operation here and love them. The choices above would depend on available space and draw down/pipe sizes would have to be accounted for.
For your two skimmers, go with the large savio's with the 16 inch wier, two sure pro 8500s feeding two bakki type showers. They can feed your waterfall and be hidden. I'm sure you have seen my DIY shower, 4 trays, each 4 feet long, being fed with a sure pro 8500. |