Repiping

Hi Folks,

I am having a new water main installed and would like to know which option you recommend. House is a 1974 Colonial (3,000 sq. ft including basement) with 2 1/2 average sized bathrooms. So, in total, 3 - 1.6 gpf toilets, 3 sinks, 2 standard tub/shower units1 - basement utility sink, 1 clothes washer, 1 dish washer, 1 kitchen sink

1. Least disruptive: Have new 3/4" L copper main pulled through the original 1" polyethylene main and connect to the 3/4" interior meter

2. "Mole" a new 3" hole through the basement wall and yard and have 1" K copper inserted with 20 additional feet of copper pipe to allow for rerouting along the ceiling joist bays before connecting to the 3/4" meter.

Distance from the city street water supply to the inside meter is approximately 50 feet.

If price is not a factor, is one way far superior to the other in terms of function? Is 1" K copper the way to go versus the 3/4" L copper? Current water pressure is perfectly adequate/good, but not great.

Thanks,

Greg

https://terrylove.com/watersize.htm

K copper

K copper is the besst way to go

but I have never seen anyone actually pull the copper through

the old plastic pipeing......

I suppose its possible??


best of figure on digging a hole and drilling a now line into

the houser

Agree with MPM go with the 1" K copper.

Go with the 1" type K. You will have more volume even though it comes through the 3/4" meter. Pressure will not change regardless of pipe size or kind. Type L is not really HD enough for a buried main, and 3/4" is marginal. You will be happier in the long run with the 1" K copper.

Repiping_Update

I'm a little bitter with myself...

The new main has been installed - 1" K copper to the house, but...

My issue now is that I failed to specify 1" K copper all the way to the interior meter. The 1" line penetrates the block wall and is immediately reduced to 3/4" M copper for about 25 feet to the meter. I regret that I didn't clarify this!!! I would have at least preferred L-grade on the interior.

Last year, we finished replacing all the original M copper, and now I have new M copper.

Greg

You can always replace it with 1"K

You can change to 1" easily enough since the pipe is inside now. I wouldn't work about using type L, it is a tad heavier, but type M will work for you just fine. That's what most interior plumbing is.

Thanks!

Thanks to Terry Love and all you good folks for this site and your advice.

Many thanks,

Greg