i am building a pond it is going to bee in my garage and it will be heated. it is going to have a diy wet/dry for filtration.i need to know how many times an hour a pond like this shoud be turned over.so i really need to know how many drains i should have going to the sump(correct me if im wrong 1" diameter yields 600 gph) and what size powerhead i should go with thank you in advance
