It says minimum is 28psi - is that realistic?
Also, how useful will it be to measure the water pressure from the garden hose spigot? I ordered a water pressure gauge that screws into the hose spigot. I'm assuming the pressure inside the house is going to be a little lower than what i get from the garden hose. But how much lower is it usually?
I'm just assuming we have enough pressure since with the garden hose set to 'full' i can shoot a stream of water 40-50 feet at least.
Edit: measured it from the hose spigot - 120 psi. So i guess the real question is how much pressure am i likely to lose when you're using the internal plumbing? And as a side note, the contractor is going to be replacing all the plumbing in the house with new.