2 of 2 people found the following review helpful:
4 out of 5 Stars) Polaris 360 Backup Valve
Cons: Wears out after about 3 years
This valve works well, but has a few flaws. Both of these flaws are wear related, so a new one works fine until these wear areas kick in. First,the top (head) of the valve develops a crack and eventually renders the unit inoperative. Second, the exit jet develops a hole about 3/4" up from the exit hole that leaks water under pressure whether or not the valve is in backup mode. Both of these failures occur over time and are caused by the valve being dragged across the pool surface. Not sure what can be done, but there it is.
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