Can you guess what's wrong.

[stani]

Anyone guess the plot?

 

[tamz]

Apart from the 3 gas pipes the blow of into a bit 3/4" overflow?

 

[Billy Bob Bob]

as tamz and the flex touching the gas

 

[stani]

Not only three gas pipes but a whole damn wall as well.
and the overflow, can't believe people still do stupid things like this.

 

[tamz]

can't believe people still do stupid things like this.

What do you expect in a house where they would use that colour paint :lol:

 

[jtsplumbing]

Dont think its gas pipes they have just been painted yellow to match the wall (just above spur box) prv & condense useing same plastic pipe, cant quite make out if filling loop as a check valve,

 

[chris watkins]

D/check on heating & not on mains.

 

[diamondgas]

Is that the prv into the plastic?

 

[neily01]

On the new viessmans the prv and condensate is combined, if i remember right one 22mm outlet. Dont knows how it works not seen it yet, how to tell if the prvs dripping visual cant be an air gap id i thought because of smell. Unless we need to install hepvo's but that would be horrid!

 

[DirksPlumbing]

On the new viessmans the prv and condensate is combined, if i remember right one 22mm outlet.

What kind of pipe are they requiring as none of the plastic pipes sold in britain fulfills the criteria for being used as a blow off and none of the metal pipes can/should be used for the condensate?
Or do they neutralize and give guarantee that this will even work without service?

 

[chris watkins]

What kind of pipe are they requiring as none of the plastic pipes sold in britain fulfills the criteria for being used as a blow off and none of the metal pipes can/should be used for the condensate?
Or do they neutralize and give guarantee that this will even work without service?

Not really true Dirk, plastic pipe (pressure & push fit waste) can be now be used on the discharge from T&P safety valve from un-vented cylinders (under Part G), surely a more severe test than a pipe which takes only a small amount of water ?

 

[Masood]

Not really true Dirk, plastic pipe (pressure & push fit waste) can be now be used on the discharge from T&P safety valve from un-vented cylinders (under Part G), surely a more severe test than a pipe which takes only a small amount of water ?

Spot on. HepVO and MuPVC are both acceptable for D2 discharge under G3 regs...

 

[chris watkins]

Spot on. HepVO and MuPVC are both acceptable for D2 discharge under G3 regs...

Sorry Masood MuPVC is not allowed only as follows from Part G
“if plastic pipes are used as branch pipes carrying discharge from a safety device, they should be either polybutalene (PB) or cross-linked polyethylene (PE-X) complying with national standards such as Class S of BS7291-3:2006 respectively” what this means is push fit plastic waste pipe = OK, MuPVC & ABS solvent welded plastics = Not OK. (Hep & other cross-linked polyethylene (PE-X type pipes also OK).

 

[Masood]

Sorry Masood MuPVC is not allowed only as follows from Part G
“if plastic pipes are used as branch pipes carrying discharge from a safety device, they should be either polybutalene (PB) or cross-linked polyethylene (PE-X) complying with national standards such as Class S of BS7291-3:2006 respectively” what this means is push fit plastic waste pipe = OK, MuPVC & ABS solvent welded plastics = Not OK. (Hep & other cross-linked polyethylene (PE-X type pipes also OK).

Thanks for correcting me on that, Chris. That was in my course notes from when I did my unvented ticket, obviously an error!