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Discuss Unvented cylinder in loft - terminating tundish in the Plumbing Forum | Plumbing Advice area at PlumbersForums.net

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ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
Tesla tundish and push fit pipe and go the easiest way
 
OP
gmartine

gmartine

Gas Engineer
That's gonna be ugly busting out of a soffit as well as putting a fall on the pipe right across the boarded out loft, any other way?
 
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OP
gmartine

gmartine

Gas Engineer
Not sure what else to add. It's an unvented cylinder install in the loft of a two bathroom extended semi-detached. I've only ever put them in cylinder cupboards, garages and utility rooms.
 

Stigster

Esteemed
Plumber
Not sure what else to add. It's an unvented cylinder install in the loft of a two bathroom extended semi-detached. I've only ever put them in cylinder cupboards, garages and utility rooms.
32mm pipe gives you plenty of options with regard to distance and bends. If not you are looking at doing it in copper tube for a neater look.
 
OP
gmartine

gmartine

Gas Engineer
Ill need to check with client for load bearing walls to reposition it, a shorter run in copper does seem a better and neater option.
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32mm pipe gives you plenty of options with regard to distance and bends. If not you are looking at doing it in copper tube for a neater look.
I've just found a figure for the fall required (1:200), is that right?
 
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ShaunCorbs

Staff member
S. Mod
Plumber
Gas Engineer
Only other way is to pump it but best part of 500 smacks

cant you get into a drain somewhere? down into the airing cupboard and into the bathroom or any soil vents in the loft ?
 
OP
gmartine

gmartine

Gas Engineer
Not really but a bathroom is going to be completely redone back to brick so I could bury a pipe and have it coming out next to SVP.
 

Stigster

Esteemed
Plumber
Ill need to check with client for load bearing walls to reposition it, a shorter run in copper does seem a better and neater option.
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I've just found a figure for the fall required (1:200), is that right?
Yes, the fall on the D2 must be a minimum 1:200
 

Stigster

Esteemed
Plumber
If you have access to the stack then why not? That's a good solution. Alternatively you can take the D2 outside and down to the ground (must terminate within 100mm of ground level) and put a little protective cage around the end of the pipe as per regs. Obviously depending on where this is on the building it can look ugly but at the side or around the back I have found most customers don't mind the pipe showing. This also allows you to fully comply with the "Discharge visible at two points" part of the regs.
 

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