[JSH]

Originally Posted by Joshinator99

If the outlet nipple is 1”, why not just carry that all the way down and back…? Upsizing to 1.5” out of the tank is unnecessary.

I agree with carrying the 1" dia. throughout the system, which mine doesn't do now. I would like to take credit for the reducer idea, but that came from Mont MS. The velocity of water increases while flowing from the 1.5" pipe to a 1" pipe through the concentric reducer I'm proposing because the area available for the water to flow through is reduced. As the area decreases, the water is forced to flow at a faster pace to be able to pass through the smaller pipe.

The reducer idea should also work on the pump discharge.