Ace Pelizon Plumbing was called out on a quote to install hot water circulation pump. Ace Pelizon Plumbing found existing 75 gallon tank style water heater located in garage. No dedicated hot water circulation line in home No electrical outlet within 10 ft Spoke with customer about different types of circulation pump systems and explained that grundfos pumps makes a system that uses the cold water as a circulation line. (Warm water will come out the cold water system when used) Pressure after regulator at 105 psi. 1 1/4 Wilkins 600xl regulator has failed. Will recommend replacement at this time. Replaced kitchen circulation pump and varied function while on site. Attempted to rebuild price pfister two handle faucet with new cartridges and found that they require brand specific in order to function properly.