Dan_Musicant wrote:
I've made a deal to have my water main pipe replaced and the guy said
he'd do either 3/4" or 1" copper, and pretty much left it up to me. He
said he'd test the water pressure and if it was over 65 lb. he'd install
3/4", otherwise 1". But he said he'd do 1" in any case if I request it.

The run appears to be around 60' from the meter out front to the point
in the house where the water currently enters. Interior piping is all
1/2" galvanized, and most of it pretty old (1914-ish house), and pretty
corroded inside, although pressure seems good when no other water is
being used. Typically, if you're taking a shower you better hope noone
flushes a toilet!

The utility company tells me that the meter out front is fed by a 5/8"
line from the main street-water-supply.

I have two bathrooms.

Should I ask for 1" copper for the water main line (presumably L, since
it will run underground) or is this really overkill? TIA.

Dan


Dan-

I had a main line repipe done about 25 years ago in a very similar
situation.... 3/4" galv from 1930

I had it replaced with 1" copper, I've got a 3/4" meter & about 50'
from street to house

water flow & pressure is great..can run the lawn sprinklers AND take a
shower (or use a single fixture in the house) since the house is only
partially re-piped I still have flow problems internal to the house.

Go with 1", you'll be happier & you'll never reason have to question
your choice

btw I had to talk my neighbor out of using 1.25" for his main line

cheers
Bob