I am going to attempt to run a water line 300+ feet from the meter. What size pipe do I need to use in order to have sufficient water pressure at the end of the run?

Would this be for a drinking fountain.. or an entire apartment building?

As you can see... further information is needed.

Yup! We need the fixture count (breakdown) to tell you more on this.

We need to know the number of bathrooms (including number of shower heads and whirlpools, if present), 1/2 baths, washing machines, kitchen sinks, dishwashers, outside faucets, etc. If you leave any fixtures out it will effect the size requirement, so be complete in your answer.

How far will the water heater be from the farthest fixture? If over 100 feet then you should probably be planning on running a recirculating hot water line, too...



Mark

For a single family residence we run 3/4"{ PVC 1 inch should cover a duplex or 4 units. However on that long a run I'd run 1" PVC. Good luck, Tom

On run of 300' I would not go with anything smaller than 1 1/2" pipe, preferably with 2" pipe.

Back to you / Milo

Please answer Marks questions. Also let us know what the water pressure in your area is. Lots of things go into correctly sizing water supply.

If I may suggest, I think it is best that you consult a certified plumber to avoid costly mistakes.Big retrofits like this should be taken done with expertise and should never be done as a DIY project.

Marcusturner said, "If I may suggest, I think it is best that you consult a certified plumber to avoid costly mistakes.Big retrofits like this should be taken done with expertise and should never be done as a DIY project."

Sorry, MT, but you are wayyyyy off base here on a plumbing page where every plumbing expert is licensed for decades each! People come here looking for professional answers and when they give us the correct information they pull off some pretty amazing projects for DIY projects!

Suggestions have been made above, but without the proper information it is only suggestions... not hard fact... why I asked for the information above!

In fact, when (if) Karenladder returns she can clarify what size her water main is at this point and exactly what she is doing with this 300 foot run of pipe. Once the information is provided, we can help her set things up exactly as required in her area/state!

Anyway, this is what we do around here, so she is consulting licensed plumbers... and doing it for free!! Not bad, huh??

Mark

Well put, Mark. I second that, as Im sure all plumbers here do.