Does anyone know anything about lepidopterology?

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Originally Posted by windsock

Drain fly. Larvae lives in the traps and pipes. Sometimes called sewer flies or sludge flies. Years and years ago, I lived in a small cottage with an old waste system. Plagued by them coming in up through the pipes into the separate wash house and bath tub as it was very close to the waste tank. Problem abated when the septic tank was cleaned out.

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Yep. That’s them. We are sewered. I believe they actually traverse the water in the s-bend (more prolific when it’s hot water going down the shower drain). We have sprayed the shower drain & bathroom floor drain (numerous times) and nothing flies out trying to escape the spraying … then next time we shower there’s 10-30 of the effers alighting on the white tiled walls of the shower recess … they HAVE to be living on the sewer side of the s-bend ?? We’ve used boiling water, vinegar, baking soda, chemicals … but they eventually come back … went to Europe aug/sep for 4 weeks so the shower wasn’t used for that time …. They reappeared about 3-4 weeks after we returned and started using the shower again … :bat:

Google drain flies Ron and all will be revealed

Kev..

By gum, I believe you blokes are correct. I’d never heard of drain flies before.

Thank you.

Nor had I Ron, I've heard of bar flies though.