Here’s what’s somewhat possible for me to accomplish...

I can 90 The two horizontal lines up as close as possible to the roof, then have them tie into the mixing valve a good 5 feet higher than where it sits.
From there I can go 3 inch straight down from the mixing valve to the pump everywhere except right at the mixing valve and right into the boiler where it would obviously need to reduce to 2 1/2...
it seems that would aid greatly in allowing the water to “settle” after it leaves the valve and before the pump..?

[Linked Image from i.postimg.cc]

She never made it past the bedroom door, what was she aiming for...?
She's gone shootin..