hunter27
Pete
- Messages
- 835
- Location
- Lancashire UK
Could be as Kayos says cold water passing through the shower mixer to the hot side and down the hot pipe, it will be at a lower pressure when the hot tap is turned on. With the bath tap being the nearest to the shower. I have come across this before, most shower mixers do have small one way valves in their inlet connections.
Does the shower valve get colder when just the hot bath tap is run?
Does the shower valve get colder when just the hot bath tap is run?