So I think I found the problem. Because most of the pipes were newly replaced and glued, I had some glue bits ( looked like scotch tape pieces ) and they all collected at the 1” check valve, keeping the valve stuck open and severely restricting the water flow. Now cleaned and back together everything is working great. Also changed the whole house filter today and found a few bit in there.
So there are three water feeds.
#1 the one with the gray union, is the water furnace line originally it was a 3/4” PVC with several 45’s and 90 degree connectors. I changed to 1” awhile back. The line I put in is 1”PVC pipe, but all the bends are straight pipe heated and curved. I never had the chance to change the check valve from 3/4” to 1’ and the last 2’ of pipe, now that I changed that and added the CSV1A the furnace seems the ramp up faster and run better.
#2 the one with the insulation on it is the house water. Nothing there changed.
#3 the one with the blue shut off valve: that a 1” PVC Pipe that feeds the four frost free hydrants in the yard. I will turn on once I need water outside.
I also replaced the pressure gauge and the pressure switch, as they were both 20 years old.
So my experience with the CSV1A in place, definitely better pressure when taking showers and better overall pressure at the faucets. No more hammering when the pump shuts off. So far I’m glad I came across the information on the valve by accident, is was on Pinterest.
Thanks Ken