Introduction
This guide will pictorially show you how to detect an age failed pump strainer cover o-ring. Replacing actual o-ring is very trivial so that won't be shown.
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Bubbles visible in strainer chamber (or at outlet jets)? Bend oring at extreme angle as shown. If tiny fissures are apparent as in photo a new o-ring will solve the issue.
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Conclusion
To reassemble your device, follow these instructions in reverse order.
