I've just installed a softener with high flow hoses as I've got an unvented cylinder. The softener is rated to 5 bar so I installed a PRV to protect it set at 4 bar. The PRV (a Comap 22mm) seems to really restrict the flow so I have 2 questions.
Is it really necessary to have one, will the pressure rise enough overnight to damage the softener or is it just the manufacturer covering themselves?
If it is required can anyone recommend a large bore one. The Comap has 22mm fittings but has a bore of about 10mm inside.
I get around 3.5 bar working pressure at the minute and it rises to 4 bar with the taps off.
Is it really necessary to have one, will the pressure rise enough overnight to damage the softener or is it just the manufacturer covering themselves?
If it is required can anyone recommend a large bore one. The Comap has 22mm fittings but has a bore of about 10mm inside.
I get around 3.5 bar working pressure at the minute and it rises to 4 bar with the taps off.
