I'll have to see if I can find the pump flow, maybe it is too fast.
The bulb is clean, I removed and checked it yesterday, there was no build up.
One issue I found... I cannot see any UV light. At the inlet and outlet I have a section of clear pipe I have used to connect the outlet/inlet to my pump/pond hose (it was too big for a standard garden hose size and B&Q didnt have any adapters - I had to cut up my snorkel to make it). So its night now, and I can bend the clear pipe connector down a bit to look right into the UV clarifier outlet while the water is flowing. It is completely dark, no light at all.
Yesterday I took the bulb out to look and it doesnt look like its blown.
So could the bulb be faulty? Should I see UV light? I am not looking long as I know its harmful.
If you cant see the light the only thing I can think of is my flow is too fast.
Or am I expecting too much in 1 week? Should I give it more time?
Thanks for your replies.
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