Excessive incoming mains water pressure usually occurs more at night than during the day when there is less demand on mains supply. This can be checked by getting a plumber to fit a tell tale pressure gauge, this will show the highest point that the mains pressure has reached during its fitting period. If it is high pressure then a PRV or pressure reducing valve would need to be fitted, this would limit the supply to around 3 Bar.
Excessive incoming mains water pressure usually occurs more at night than during the day when there is less demand on mains supply. This can be checked by getting a plumber to fit a tell tale pressure gauge, this will show the highest point that the mains pressure has reached during its fitting period. If it is high pressure then a PRV or pressure reducing valve would need to be fitted, this would limit the supply to around 3 Bar.