I bought the Eshopps 1800 overflow box with a 1 1/2 inch bulkhead. I also bought a sump inlet assembly, that has a 1" input. If I were to downsize the bulkhead to 1", would it make my overflow box overflow? how would it affect my GPH?
Carfree_Dude;4894445; said:just to verify, brass is aquarium safe, right?