I live in Virginia,

Our main water lines in my area are approx. 3ft below surface.

I have about a 50ft run (little less) from water main to cutoff in the craw space under the house.

I hear a lot of different advice on what type of water main is best. Some people say Schedule 40 PVC, some people say Schedule 80, others say to use Flexible Poly Pipe of some type.

Any idea what is best to use, for someone looking to do themselves?

The current pipe that is in place is still somewhat functional, however its a 1/2" Galvanized Steel Pipe that was installed when the House was built in 1949. So it's flow is so restricted that we only get about 25psi or less, and can't use more than one faucet at a time, or we get literally drips from each faucet.


Thank you.



Edited 1 times.

Personally,I would never use anything but copper if the line was less than 100 ft. long.

sorry to be the bearer of bad news.. but you will never get any more than 25 PSI no matter what size pipe you put in.

you will get more gallons per minute with a new larger pipe that is all.

having said that, i would use 1 inch pex.

I’m with HJ
Copper piping
Chances are if your existing water service is galvanized piping you will need a pro for the connection to corporation stop where there “could” be existing lead attached to and of course permits and inspections

I would call your local water company and ask them if they have any requirements. Since you will need a new connection to the main, the water co. may dictate what you can connect with since they have to come out and make that connection.

As was noted, pex and copper are best, a 3/4" pipe is adequate for most 2 1/2 bath homes, 1" obviously is better.