1) What is the best check valve for return to get? - Longest life and most reliable?
2) How do you plumb it? Do you put unions on each end so that way its re-usable in the future if you re-plumb, or do you just basically get new one with each tank build or replumbing?
2) How do you plumb it? Do you put unions on each end so that way its re-usable in the future if you re-plumb, or do you just basically get new one with each tank build or replumbing?