New water line, starting from 0. What sizing and line should I run ~600ft in TX

[Jeff H Young]

FWIW, my utility use Badger Recordall meters, and from their published data, at 20 gpm their meters will drop:

Model 25 5/8" 6 psi
Model 25 5/8" x 3/4" 4.6 psi
Model 35 3/4" 3.3 psi
Model 55 1" 1 psi
Model 70 1" 1 psi

Cheers, Wayne

I notice that the tables Terry has doesn't show 5/8 meters or even 3/4 with larger than 1 1/2" water service . sizing method for a particular code might not consider a 2 inch to carry more fixture units than a 1 1/2" . My code books are very old and haven't sized anything like this in a very long time. I have however had many jobs with meters that are probably undersized. they by no means generally need to be equal in size to to the house line

 

[Terry]

My mothers place had a 5/8" meter and a 3/4" copper line running 250 feet. And then after that a line was run further to the back yard.
Same meter but 1.5" PVC and allowed me to run irrigation on her 7/10 of an acre. It was a very deep lot. Even a 5/8" puts out a lot of water, and if you get rid of friction loss, you get to keep it.

 

[Sponsor]

 

[Sylvan]

I have a 11/2 water main located less then 50 feet from NYC water main with an 11/2 Meter 44 PSI

When the DEP tried to install a a 1" meter the Sloan Flushometers in 2 bathrooms top floor did not work properly .

So they opted to go back to the 11/2 meter so all 5 toilets, 2 bath tubs 2 showers etc

I explained to them that if someone is taking a shower and a flushometer is flushed there will be a volume drop and this could cause someone to be scalded . I did not bother to mention all my showers except one have anti scald shower body's


I could have installed the meter but NYC was doing upgrades for free so I just let them do it as I watched them to make sure it was installed properly . I am charged by actual water usage not by the size of the supply

 

[Sylvan]

https://www.askthebuilder.com/properly-size-your-water-lines/



https://www.plumbingsupply.com/water-pipe-sizing-charts.html

 

[Jeff H Young]

Good Info sylvan! city to city state to state . different agencies treat billing differently . thanks for the sizing info haven't looked yet though.

 

[Jeff H Young]

maybe some engineer could stamp a plan with 5/8 meter and 2 inch building line but I don't see anything like that in our codes in those long distance runs. I could only guess at the benefit of such a way to build might be ok but that's guess work . if there was already an existing meter I might go for it but otherwise I'd follow the book or accepted practice

 

[Sylvan]

maybe some engineer could stamp a plan with 5/8 meter and 2 inch building line but I don't see anything like that in our codes in those long distance runs. I could only guess at the benefit of such a way to build might be ok but that's guess work . if there was already an existing meter I might go for it but otherwise I'd follow the book or accepted practice

According to some updated plumbing codes new homes need to have a sprinkler system piped off the domestic supply.

By having a 2" supply with a properly sized meter adding a fire suppression system or adding more demand on the new main will not cause any problems in the future as demands increase

 

[Jeff H Young]

According to some updated plumbing codes new homes need to have a sprinkler system piped off the domestic supply.

By having a 2" supply with a properly sized meter adding a fire suppression system or adding more demand on the new main will not cause any problems in the future as demands increase

Yes true Sylvan many places , nearly all I work on require fire sprinklers and it very often seriously increases water service size that I belive is why my home has an 1 1/2 50 foot service with 80 to 140 psi. Ive had to run 2 inch on many homes based on the fire sprink needs.
BTW, you 2 referances on sizing is very helpful , all of this stuff Ive know but pretty rusty and the you tube videos I recomend as well , " bg's plumbing class "on you tube is great! your link to ask the builder directed me to his channel. Its upc code which is my code