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.
So, when replacing an old hot water system you must now install a tempering valve to reduce the temperature to 50Â°C in bathrooms. Kitchen and laundry applications are still permitted to bypass the tempering valve and use the hot water directly from a standard electric or gas hot water tank.