I am in the process of doing a sump on my 37gallon column tank. I have a 10 gallon sump, a marine depot elite overflow box which was rated for up to 90 gallon tanks. The overflow box has a 1in drain and 1in emergency drain. The design is equivalent to the eshopps s overflow box. I was planning on doing 3/4in plumbing for the return. I also have a dcp4000 pump. There’s about 4 1/2 feet of head pressure. I am looking for input as to whether I am going about this the right way. Please give me your thoughts. I am wondering if I made the right choice for the return line as well.
Also, the pump size.
Also, the pump size.