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I need to replace a failed electric valve in my drip irrigation manifold. The pipes leading to each valve are 3/4" PVC, but they in turn are enclosed in what looks like black ABS pipe, at least 1/2" wider than the PVC. These pipes are open at the top. What is the purpose of the black pipe? Protecting the PVC somehow? I need to cut some of the black pipe away in order to get to the PVC so I can replace the valves. Any ideas?

ABS pipe from manifold

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    A picture would be helpful. – Tyson Aug 25 '16 at 12:04
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It appears the black pipe is there to protect against impact damage. Were it not there the PVC could shatter relatively easy since it degrades in sunlight.

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  • Yeah, when I finally got time to dig around there, the ABS pipe is just floating there loose. Must be just some protection. Thanks. – Nolo Problemo Aug 28 '16 at 18:30

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