Is it totally dark when you’re testing for the oclt?
Cleaning the filters is a good idea. We recommend doing that when pressure rises 25% over clean pressure so make note of your clean pressure after.
Have you cleaned your beaker lately? If not give it a good wipe with alcohol & rinse.
For OCLT I think that might be a mistake I was making… I was waiting about 30 minutes after sunset there was still light but no direct sunlight out and testing around 7am when sun was about to come up so there was some light out but not direct sunlight.
last night I wasn’t able to test until about 7:30 so there was no sunlight and was dark already.
This morning I tested at 6:30am was still somewhat dark and no sunlight just yet.
And cleaning my beaker what’s that


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Filters were cleaned previous day. They were dirty dirty

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