Hi,
i have a Telford Tempest water heater at home and it comes with an inlet pressure control apparatus (looks like a ball with a pipe in it).
the manuals say that the water pressure settings should not be changed but i have accidentally changed one of them. i think i have taken it back to its original position but i can only guess wether it is right or not. is this something i should be worried about? do i have to call in professional help?
thanks