Q: I'm a regular reader of your column and was hoping you could help me.I live in a two-unit building built in San Francisco in 1941. My upstairs neighbor and I have been told that our water pressure problems (we can't shower when anything else using water is running) would be solved if we replaced the galvanized plumbing with copper.For a basic project in zip code 47474 with 1 job, the cost to Repipe House Water Supply Lines starts at ,540 - ,031 per job.
Remove existing piping between utility meter and all fixtures.
Replace, secure and test new piping, fixture shutoff valves. Apply basic patch to any damaged wall/surface access points. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup.
That in itself is a powerful reason for replacing the pipes, but there is another.
Galvanized steel pipes tend to corrode from the inside, and the corrosion gradually reduces the internal cross-section and restricts waterflow.
But we wouldn't be surprised if you have seen some discolored water when you turn on a faucet you've not used in awhile.