lookout888
Member
Thanks for your build link. I'll follow along. Keep in mind your overflow box capacity to your return pump output. My sump, refu. ect are in my basement. I have two dolphin return pumps and I have one valved back a little. My returns are 2"x 2 back to the basement. If both pumps run full, the water tends to want to overtake the overflow. Not good. I should have had 2.5 to 3" returns to be safe. On your drivers let us know how you can use that many. (what you figure out) LUCK---Rick
Did you use a bean style drain system? One drain is a full syphin so you get a lot more flow through it then normal drain.