Preferred piping for direct-bury water line to Greenhouse

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Chuck Shaughnessy

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I will be running a water line from an existing line at a frost-free hydrant to a new greenhouse. There are SO MANY new options for type of piping - PVC, flexible PVC, PE, PEX ... and on and on.

Can someone recommend thoughts on best piping to use for this? Probably 3/4 inch but perhaps 1 inch. Will be used for greenhouse water. I live in Zone 7 so I may install a waste-stop valve in a water meter box just outside of the greenhouse in case I am not heating it and want to drain its water in the winter (I hope to be heating and growing).

I don't have PEX tools so that might be a big purchase. I'm definitely proficient with PVC but I've read bad things about flex PVC,

Any recommendations would be appreciated.

Chuck
 

Reach4

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How long?

SIDR polyethylene would be good for a longer distance IMO. It is economical. https://www.menards.com/main/search.html?sf_categoryHierarchy=&search=sidr Connections are made with barbed (insert) fittings, and two worm gear clamps on each end of the pipe. Schedule 40 PVC is not bad either, but there are more thermal concerns to look at than with some others. https://www.charlottepipe.com/Documents/PL_Tech_Man/ExpansionandContraction.pdf

When running polyethylene pipe, do not pull tight during installation, but snake it in the trench to allow for thermal contraction.

While PEX can be used, it is smaller than SIDR for a given nominal size. It costs more. https://www.huduser.gov/portal/publications/pex_design_guide.pdf
 

Chuck Shaughnessy

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How long?

SIDR polyethylene would be good for a longer distance IMO. It is economical. https://www.menards.com/main/search.html?sf_categoryHierarchy=&search=sidr Connections are made with barbed (insert) fittings, and two worm gear clamps on each end of the pipe. Schedule 40 PVC is not bad either, but there are more thermal concerns to look at than with some others. https://www.charlottepipe.com/Documents/PL_Tech_Man/ExpansionandContraction.pdf

When running polyethylene pipe, do not pull tight during installation, but snake it in the trench to allow for thermal contraction.

While PEX can be used, it is smaller than SIDR for a given nominal size. It costs more. https://www.huduser.gov/portal/publications/pex_design_guide.pdf
Around 75 feet.
 

John Gayewski

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What's clear core John?
Are you referring to "pure core " by Jm eagle ? just wondering I've never heard of it but maybe this is well known product elsewhere
Yes pure core. We call it clear core interchangeably with pure core. It comes in iron pipe size or copper tube size. Seems like good stuff.
 
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