I can be taking a nice, relaxing shower and -BAM!- someone flushes a toilet in another bathroom and the hot water vanishishes. It stays cold until the toilet tank is refilled (about a minute or two). Why does the toilet need my hot water? It’s a cold water device!
I’ve been in other showers at other’s houses, and the water becomes scolding when a toilet is flush. THAT, to me makes more sense, because the toilet is drawing away cold water for itself, leaving nothing but hot. But that’s not the case in my house. Why?
ONE OF TWO REASONS.
INSIDE YOUR SHOWER ARE TWO SAFETY DEVICES 1 A LOW PRESSURE DEVICE THAT DETECTS WATER PRESSURE SO THAT THE HEATER CANNOT BE ON WITH NO WATER INSIDE THE TANK
2 AN ANTI SCALDING DEVICE SWITCHES OFF THE HEATER IF THE TEMPERATURE GOES TOO HIGH – STOPPING YOU GETTING SCALDED
WHEN THE TOILET IS FLUSHED, THE CISTERN IS LOWER THAN YOUR SHOWER SO THE WATER FINDS IT EASIER TO COME OUT OF THE LOWER OUTLET, REDUCING THE WATER PRESSURE SIGNIFICANTLY
[DEVICE1 CUTS IN?]
AS WATER FLOWS INTO YOUR TOILET CISTERN, THERE IS LESS WATER TO GO THROUGH YOUR SHOWER SLOWING THE FLOW MEANS LESS WATER IS IN CONTACT WITH THE HEATER BUT FOR A LONGER TIME – THUS RAISING THE TEMPERATURE BEYOND THE SAFE LIMIT
[DEVICE2?]
HOPE THAT EXPLAINS IT
LOCK THE BATHROOM DOORS B4 TAKING A SHOWER
ANDY