I'm putting together a small temporary test pond. Has anyone tried locating a submersible pump within a chambered filtering system to move water from the pond through the chambers and then back to the pond. I'm looking to string together a couple of DIY filterboxes complete with a matala matting stage, then a kaldnes stage, then pumped back to the pond.
My main question is would a 2400-2900 gph submersible pump be strong enough to suck through the filter boxes and stages biological filtration while still providing enough suction at the bottom drain to get the muck out of the pond?
I am also concerned if the 2000+gph pump will throw out too much water out of the filterboxes (faster than water can be replaced) causing an imbalance in the water levels between the two filter-boxes
. I'm guessing that if I have a larger sized pipe input into and through the filter-boxes, I won't have this problem of imbalance. Can anyone help me out here? Appreciate any input and words of wisdom.
Aloha,
Carl