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Message: <blockquote data-quote="harry eales" data-source="post: 1274139" data-attributes="member: 3028">Hello Alan,It's possible that your nest was subject to an attack by one of the 'Vespa' species which acts like a Cuckoo Bee in a Bumblebees nest. (Buggered if I can remember it's name though) I don't have my Wasp ID book to hand and I can't remember who borrowed it (galloping senility strikes again).Kathy,The explanation for the wasps in your hot water taps is quite simple. The header tank for the hot water system is invariably in the loft in most houses and especially in cottages. If a wasps nest is in the same attic/loft, then the wasps could have accidentally drowned collecting water (they do do that you know) or it is possible that the nest was immediately above the tank which may have not been covered with a lid. In this instance any dead wasps would have been ejected from the nest and dropped into the tank.Eventually they would have become water logged and would sink to the bottom of the tank. The next time you drew hot water, the header tank would have filled up the hot water cylinder and the water flow from the header tank would have sucked the wasps into the hot water tank. The next time you drew off hot water the dead wasps could well have been sucked out of the hot tank into the tap supply pipe. It's 45 years since I was a plumber by trade, but I havent forgotten how hot water systems work.Anyone who is worried about dead wasps in their hot water tank or taps, should check that there is a cover on the header tank in the loft.Harry</blockquote>

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