We bought our house a couple of years ago and it is old and was previously divided into 4 apartments. It had two water tanks installed and we had one of them removed and we also had a plumber do a couple of other small things. I'm sure our pressure was very good when we moved in and now it's terrible. It appears to be all copper plumbing throughout. I'm wondering if whatever the plumber did has screwed things up.
I see that the main water line comes in and goes directly to the remaining hot water heater before it cuts off to service the rest of the house with cold. I'm thinking this is the problem and that it should cut off for the cold water before it goes to the hot water tank. Would this cause the low pressure problem? I'd be interested to know why if that is the case. We'll be calling in a plumber to fix things but I want to know what's going on.
Any advice would be appreciated.
Best Answer
Unless the size of the pipe was reduced at the tee The pressure/flow should not matter where the water goes into the heater. With that said I have had gate valves fail and not open all the way after being closed for maintenance I would suspect the main cutoff valve to be the issue since copper dosent corrode and shrink down like galvanized pipe will over time. The last possibility is when the work was done some debris may have broken loose and partially plugged your valves if washerless or faucet ariators. I would be checking these items before paying for another call to the plumber.