- Joined
- Mar 3, 2020
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- United Kingdom
Hi All. I upgraded my skimmer to a RedSea C-skim 1800 and its been running for 5 weeks. It was skimming well until one week ago when all of a sudden the water level dropped within it. I now have to close the valve quite a considerable amount to get the bubble level back to a good level. I have checked the air intake and pump and its pulling air in very fast so nothing seams to be blocked up. Its still pulling out loads of crap but now with lower water flow.
is this normal skimmer behaviour?
is this normal skimmer behaviour?

