Quote:
Originally Posted by Graspher
Ace advised using the flex pipe for repair....when I thought it was a pvc pipe. I thought about it for a day then decided I didn't want to mix mediums. Did a little research and came up with the 4 90's solution. You cut the bad section out - put a 90 on each cut end, come out of the 90's with a short riser - add 2 90's and a cross piece and there it is. I'm a bit embarrassed that I didn't come up with that on my own - its an easy solution to repairing "fixed" underground irrigation piping.
The result is not a straight line but it doesn't matter given the amount of water pressure running thru the pipe. I like the 4 90's cause it keeps it in the same medium family.
I need to know that the repair will be long term without any doubts. When I fill in that hole I don't ever want to re-visit it again. Peace of mind goes a long way towards easy sleeping.
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Flex PVC is a perfectly good solution, 1/2" or 3/4" whichever is required. The same material you probably have at every elbow that rises up to a sprinkler head. PVC pipe cement glues it just as securely as rigid PVC pipe.