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.
When you flush refilling the toilet uses cold water and the pressure in the cold water lines drops. The pressure in the hot water line is usually not affected. Therefore flushing the toilet can make the shower hotter and it does not usually make the shower water run cold. This is the reason for pressure balancing shower and bath valves â safety to avoid scalding. Views.