Bugs in sink drain

DO you leave your gray valve open? DON'T. For now,, I'd you might try this.

Plug drain. Dump tank (Gray) Disconnect hose.. Stuff a can of fogger up the pipe and put the crain cap on. Come back in 2 hours and remove the can, close the valve (in the opposite order) that should gas 'em.

NOTE> might be a good idea to be elsewhere for those two hours.

Thanks all. A heavy dose of bleach seems to have worked. Maybe?

Boiling water, then strong bleach water, then lots of water to flush them all down. And close the grey tank until it's time to dump.

Not an issue with me. My sink drain drains directly outside the camper. No holding tank involved.

How to get rid of sewer gnats....Dennis

Are you leaving your Grey Tank drain open?

Very hot water down the Dean followed by strong bleach water. Lots of water, flush 'em down.

Thanks folks! Wealth of good info. Appreciate it.

Google search of 'sink drain bugs' in this forum.

Kind of an odd format, but the posts are here.

RAID BUG SPRAY!

Then pour water so that the water trap has water.

navegator