Will a PRV solve this?

[tamz]

Got a link Tam, must confess to not coming across one yet.

Link posted #12.
Used mainly on combi's and multipoints where a manual mixer has been fitted but can be fitted to any shower or system. Keeps the temperature stable if someone opens another tap.
Wouldn't make any difference if some halfwit had crossed the pipes tho which should be the first thing you check.

 

[Plum Bob 66]

here you go mate: Pressure Equalising Valve - Ceramica available at Plumbworld

cheers Tam, another one for the knowledge arsenal.

 

[mike-c]

Finally, a thread on here with a happy ending and none of the usual nonsense heading off in about ten different directions of opinion.

 

[Plum Bob 66]

Finally, a thread on here with a happy ending and none of the usual nonsense heading off in about ten different directions of opinion.

Dont you just love a happy ending Mike !