Hi there,
This is related to another problem with my unvented cylinder boiler. A new mains has been fitted (a year back in fairness) and I'm not noticing any better flow...its been a nagging problem that I've had enough of and need to solve. 9LPM at best I get - and that's in the taps next to the boiler close to the mains inlet.
Anyway, I've replaced the PRV to no avail and I'm now looking elsewhere... I have a 25mm plastic mains pipe. The boiler is fed by a 22mm pipe and pipes leading off the boiler are all 22mm. However, the stop cock is what seems to be 15mm instantly where the blue pipe enters the house. This continues at 15mm, hits the PRV and then continues under the ceiling and turns into 22mm which arrives at the boiler.
Would this reduction to 15mm have an impact on flow rates? Pressure at the taps seem great but the flow rate not good. Its an Ideal Istor all in one unit - bad reputation but its serviced every year and hasn't caused any major problems. It advertises up to 35LPM and 11LPM minimum I think on an empty tank.
Thanks in advance for any suggestions.
This is related to another problem with my unvented cylinder boiler. A new mains has been fitted (a year back in fairness) and I'm not noticing any better flow...its been a nagging problem that I've had enough of and need to solve. 9LPM at best I get - and that's in the taps next to the boiler close to the mains inlet.
Anyway, I've replaced the PRV to no avail and I'm now looking elsewhere... I have a 25mm plastic mains pipe. The boiler is fed by a 22mm pipe and pipes leading off the boiler are all 22mm. However, the stop cock is what seems to be 15mm instantly where the blue pipe enters the house. This continues at 15mm, hits the PRV and then continues under the ceiling and turns into 22mm which arrives at the boiler.
Would this reduction to 15mm have an impact on flow rates? Pressure at the taps seem great but the flow rate not good. Its an Ideal Istor all in one unit - bad reputation but its serviced every year and hasn't caused any major problems. It advertises up to 35LPM and 11LPM minimum I think on an empty tank.
Thanks in advance for any suggestions.