Sprinkler Doc

The Blogging Plumber from Boise

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What NOT to Bury

Posted by Retired Geezer on May 16, 2006

I’ll be writing more about the repair job I did today, but for now I think a visual is worth a thousand words.

This is a picture of a repair job I finished today. The client neglected to have the sprinklers ‘blown out’ last Fall, so the water remaining in the pipe froze and split the PVC.

The spiral fractures are indicative of ice expansion.

Lesson one; Always have your sprinks blown out. It’s usually under $50 to do it unless you have a lot of valves.

Lesson two; Black Poly tubing resists shattering more than PVC, but if you must use PVC, at least get the Schedule 40. Sure it’s more expensive but it withstands abuse better.

The PVC on the left is Sch 40, the one on the right is what we in the business commonly refer to as “Eggshell”.

Guess why.


2 Responses to “What NOT to Bury”

  1. Josh said

    I have a yard thats aproximately 50’x 100’and its pretty attractive. I would like to keep it that way. What would be an aproximate cost difference between black poly tubing & PVC?

  2. I would say that any cost difference would be negligable. I would recommend Poly because it’s more forgiving than PVC and much easier to work with.

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