I’m exploring the option of a piston air pump. I’ve got a display tank on the 1st floor and the fish room is in the basement.
Everything I read about the piston pump says to mount it above the water line, but I want to mount it near the ceiling in the basement and use a check valve to also run the tank on the 1st floor.
I guess my question is why can’t you use a check valve with a piston air pump (or can you?)