Title: Poor Durability
Product review: I purchased 6 units approximately 2 1/2 years before writing this review. In the time that has passed, 4 units have failed for varied deficiencies including, but not limited to 1) failed head gaskets, b) a failed relief gasket, and c) a failed bypass valve. During a longer span of time, there have been zero failures of installed Champion branded valves. I conclude that the Orbit product is a failure waiting to happen. Given the time an expense of installing sprinkler valves, I strongly recommend that interested purchasers buy the genuine article -- the Champion anti-siphon value with automatic manifold.
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