so let me see if i have got this right.
Both drilled holes at the top overflow into the 1st holding sell of the sump,
(here is my sump wet dry trickle)
now the second chamber is where the water is pumped back into the tank correct?
If this is correct i have 2 other questions. FIRST would i be needing to plumb another pipe straight up from the sump, up over the lid of the tank as a return?
and second with this set up where do i put the protein skimmer?
also what do i want in the return in gph? Someone had told me i want alot of water moving all the time... is this also correct?
I keep forgetting to get pics of the holes. sorry, they are both the same size (about golf ball size.)