Why can toilet have this kind of thing? How to eliminate?

This kind of insect calls moth midge, common says " mucky bug " , live away from home is in damp sewer and cesspool.

Say how I administer it. Bridal chamber did not use a turn as a result of sewer model next conduit bring about this kind of insect to fly particularly easily, wash the dress to be able to fly to a few the following day with washing machine every time, rain of shade the world sends summer more especially plague of insects. This insect looks especially disgusting ah, pat it dead to be able to leave black impress on snow-white wall, keep clear of not easily still. For proper repair it, consulted a large number of data. It is OK above all make it has next curved hose, the canal had done water to cannot alter easily below, can consider other method only so. Destroy bug agent, some treasure has the insecticide that copes with this kind of insect technically, particularly good with, the liquid medicine on gush is very fast it won't be moved, shed next black water. Discover the unit that sells the sort of blocking floor drain again later, OK and slack, close partly condition, this still is more applicable, bought two to be changed, have effect really.

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