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.
Checking the Shower. Your water pressure problem may be related to the shower faucet or shower head -- this is especially likely if you have good pressure at the sink. Someone may have partially closed the shower valve or if the shower head old, it may be encrusted with minerals.alvanized Pipes. If you have an electric tank-style water heater, the hot water that comes out of it should be under the same pressure as the cold water that enters it. If the cold water in the shower has enough pressure, but the hot water doesn't, check your plumbing pipes -- particularly if you live in an old house.