Treato found 16 discussions about Cold Symptoms and Cats Allergy on the web.
Best Answer: When the toilet is flushed, the toilet is robbing pressure from the shower, which is usually close to the toilet. As the COLD water pressure goes down from the toilet flush, the HOT water pressure is higher, therefore the water gets hotter as the COLD pressure goes down.
Flushing the toilet doesn't mean your shower should instantly turn cold. Learn how to fix the problem. (Photo by Summer Galyan) When flushing the toilet turns the shower water cold, itâs not a magic trick, but rather a problem with the piping.