A big concern of mine right now is how my backpressure gauge on my sand filter will now jump to 30psi after a few minutes of operation following a backflush.
I'm backflushing daily while I work thru a shock cycle to rid myself of an algae bloom, and it just consists of a 3-5 minute flush whenever I see it at 30 psi or more. I will flush for about 2 more minutes once the water clears.
It usually drops down to about 20 and stays there.
Now it pops back up to 30 after a couple minutes.
I bf'd 3 times this morning to get rid of it, but it's still happening.
And it has developed a vibration in the plumbing that's strong enough to see the 2" PVC pipe moving.
It has rattled the bottom screen loose inside the (empty)automatic inline chlorine feeder.
I just walked out to check on it and it's back to 20psi w/no vibes. So it's not a constant thing. Great?
Could it be chatter from a checkvalve or a valve actuator going bad?
What about small amounts of air in the system? You can see some swirling bubbles under the pump skimmer's lid. I figured it was caused by cavitation from the impeller?