prv discharge pipe

[plumbdoctor]

been to quote a job today and its going to be a right mere to run the prv pipe to outside can you discharge it internally into a soil stack if you have a tundish ?

[bennygas]

i have seen it done to a little tank with a lid in the bottom of the airing cupboard - done by a big firm, and apparently they reckoned they had approval to do this. anyone else come across this?

[Simon F]

http://www.ukplumbersforums.co.uk/ce...ork-combi.html (discharge pipe work from combi)

what do the manufacturers instructions say?

[AWheating]

its possible. Its done in alot of flats and basement installations. You may require building control permission.

[SimonJohns]

I know it can be done on uvhws. But for a boiler I'm sure you have to go outside

[hammers4spanner]

have worked on site a block of flats where each flat had a worcester gs 24 junior combi and everyone had tundish then into hepvo trap then onto soil stack , all passed by build control.

[andyg0507]

or you could try these Condensate Pumps: NXT Gen: VCMA

[andyg0507]

sorry i think ive just totally misread the op, i was thinking condensate, worth a look for condensate stuff tho.

[AWheating]

you can get a combined condense blow off pump but they cost around 180 squids.

[andyg0507]

have you got a link to that??

[hammers4spanner]

you can get a combined condense blow off pump but they cost around 180 squids.

personally would rather find another way instead of possibly pricing myself out with an extra £180

[andyg0507]

and how does the condensate combine with the blow off, with condensate being acidic, i.e what type of pipe is it run through?

[AWheating]

there a few about. Baxi have even got there own branded one on the market now also.

Baxi Multifit External Boiler Discharge Pump - | Plumb Traders

[AWheating]

and how does the condensate combine with the blow off, with condensate being acidic, i.e what type of pipe is it run through?

one copper pipe into pump, one plastic im guessing.

[kirkgas]

and how does the condensate combine with the blow off, with condensate being acidic, i.e what type of pipe is it run through?

condensate requires non metallic, blow off requires pipe capable of taking high temp, so its just about choosing the right type of plastic to suit the blow off temp