Hello.
I have a water discharge issue via the overflow from my unvented cylinder. The cylinder is overflowing only when the cylinder is being heated.
It appears the muppet who installed it did not do a proper job and will not return to fix.
I have been told that the pressure relief valve requires replacement and the overflow MUST discharge via tundish and copper pipework.
I've looked on NHBC who produce a technical guidance document 8.1/26 that states that indeed the overflow should include a tundish, which I dont have, but does state that plastic overflow pipe work is an acceptable alternative to copper.
My questions are this.
1. I believe the tundish gives a visual sign of water, but its an open fitting. Is there no chance of a tundish spilling water? Are there enclosed ones available with a glass or similar window?
2. Surely to unitise the existing PP pipe for overflow is the most convenient?
3. What would be the ball park cost to supply and fit the valve, tundish and utilise existing pipes? One quote I have appears excessive - north of £600.
Help and advice appreciated.
C
I have a water discharge issue via the overflow from my unvented cylinder. The cylinder is overflowing only when the cylinder is being heated.
It appears the muppet who installed it did not do a proper job and will not return to fix.
I have been told that the pressure relief valve requires replacement and the overflow MUST discharge via tundish and copper pipework.
I've looked on NHBC who produce a technical guidance document 8.1/26 that states that indeed the overflow should include a tundish, which I dont have, but does state that plastic overflow pipe work is an acceptable alternative to copper.
My questions are this.
1. I believe the tundish gives a visual sign of water, but its an open fitting. Is there no chance of a tundish spilling water? Are there enclosed ones available with a glass or similar window?
2. Surely to unitise the existing PP pipe for overflow is the most convenient?
3. What would be the ball park cost to supply and fit the valve, tundish and utilise existing pipes? One quote I have appears excessive - north of £600.
Help and advice appreciated.
C