The water main from the meter by the curb to where it enters the house is double triple checked ,Plumber certified clear aok. Here is what is going on. At the outside hose bib turned all the way open i get a reading of 70-75 water psi. When i turn on the faucet in the bathroom or kitchen or tub,or flush the toilet the psi drops to 20.This happens whether i turn on the hot or cold side of the tub or any of the faucets. If the toilet is flushed it takes nearly 2 minutes to fill back to water level. After that the water psi is back to normal. Could the flow problem be at a defective supply valve at either sink or toilet? I checked those all they seem to work fine going through the open closed procedure a few times. I figure if flow was bad it would perhaps only show up at one faucet or only happen on the hot or cold side...? Where to look next?
Thanks to all replys!!!
Thanks to all replys!!!