What type of pipe for water supply line

[stacking908]

Good evening, I am going to be running a 700' 1.5" water supply line from my storage tank to home. What type of pipe do you all recommend using? I see people using PEX PVC HPDE and others. It will be in southern Arizona. Thanks Ryan

 

[Reach4]

How much elevation change is involved?

How many PSI do you expect to deal with?

PEX is unlikely to be your choice. Polyethylene is likely to be the choice.

 

[Sponsor]

 

[stacking908]

Dropping 65' in elevation, gravity should give me about 28 psi and an booster pump to get to 50 psi. Looking to have about 15 gpm flow. I think roughly a 1.25" pipe will be 30 feet head loss, 1.5" pipe 12 feet head loss, and 2" pipe 5 feet. If that is right was thinking 1.5" pipe

 

[Reach4]

Note that 1.5 inch polyethylene SIDR pipe is bigger than CST polyethylene pipe. SIDR uses barbed fittings and worm gear hose clamps to make the connection.

For thermal expansion/contraction reasons, you do not want to pull the pipe straight and tight, but rather snake the pipe.

Menards does not sell into AZ, but this should give some idea about what is available:
https://www.menards.com/main/search.html?search=sidr

 

[stacking908]

That SIDR pipe I should be looking at 160 psi pipe? Thanks for the help

 

[Reach4]

160 psi pipe is good. Your pipe will not see nearly that pressure.

 

[opplumbinghub]

Good evening, I am going to be running a 700' 1.5" water supply line from my storage tank to home. What type of pipe do you all recommend using? I see people using PEX PVC HPDE and others. It will be in southern Arizona. Thanks Ryan

For a 700-foot, 1.5-inch water supply line in southern Arizona, the best choices are HDPE or PEX. HDPE is strong and can handle sunlight well, while PEX is flexible but needs protection from the sun if above ground. PVC is light but can break easily in the sun, and copper is reliable but costs more. Don't forget to check local rules.

 

[Reach4]

Isn't big PEX very expensive, in addition to being smaller for a given nominal size?

 

[stacking908]

Pex is very pricey. The line will be buried the entire way. I called a couple supply places and haven't been able to find some SIDR pipe locally. I can always buy it online and have it shipped but that adds a decent cost also. Seem like most people use pex for there supply lines here BUT they are only going 30' most of the time. I would love to run copper but it is way out of my price range. The county rules are very relaxed, its the wild west were I live. Basically if the pipe is designed for potable water then its fine. I will look into the HDPE pipe also. Thanks for the help.

 

[wwhitney]

Dropping 65' in elevation, gravity should give me about 28 psi and an booster pump to get to 50 psi. Looking to have about 15 gpm flow. I think roughly a 1.25" pipe will be 30 feet head loss, 1.5" pipe 12 feet head loss, and 2" pipe 5 feet. If that is right was thinking 1.5" pipe

Those are close to being correct, see http://irrigation.wsu.edu/Content/Calculators/General/Pipeline-Pressure-Loss.php and use the actual ID of the variety of pipe you are going to use.

Cheers, Wayne