Hi. My neighbour has a gas boiler installation with the condensate drain dropping down to an exit point through the double skin wall and to an outside soakaway drain away from the house. This has been made weather proof, (Southern UK so not extreme), by fitting it with the old Condensulate Standard system. This takes the drain from the inside through the wall into 32mm sleeving PVC pipe and to the ground in one piece. Everything seems in order as to the regularity and security of the installation and it has worked for a number of years without any problems.
The condensate drops from the boiler in the fitted 22mm (I think) pipe and is push fit vertically into a rubber gland fitted in a 32mm elbow which takes it outwards and into the wall. The Condensulate pipe is fitted through the wall sleeved in 32mm to this interior surface where it joins with the interior piping horizontally via the supplied connector with its specialist adhesive. That joint actually comprises of:
32mm elbow -> 32/21.5mm rubber reducer -> short 21.5mm stub -> (as solvent weld) Condensulate 21.5mm/20mm reducer -> (as Specialist adhesive) Condensulate 20mm flexible pipe.
It has recently failed and is leaking just inside the wall, presumably at the joint between the Condensulate and the interior PVC pipe. This was made with the supplied Condensulate connectors and their recommended adhesive as it means a joint between PVC and a non-mating flexible material which cannot be solvent welded, ( maybe PP?). The adhesive was a two part with a primer coating painted on the Condensulate pipe then left to cure and an adhesive proper applied after a short wait. (I know all of this as I had never come across it before and I asked to be there to see it done.)
Of course the condensate is acidic but this is often overstressed as it is only as acidic as sharp orange juice and other kitchen chemicals. Yes, it is not diluted in the same way as kitchen waste but surely PVC joints and specialist...
Read more
Continue reading...
The condensate drops from the boiler in the fitted 22mm (I think) pipe and is push fit vertically into a rubber gland fitted in a 32mm elbow which takes it outwards and into the wall. The Condensulate pipe is fitted through the wall sleeved in 32mm to this interior surface where it joins with the interior piping horizontally via the supplied connector with its specialist adhesive. That joint actually comprises of:
32mm elbow -> 32/21.5mm rubber reducer -> short 21.5mm stub -> (as solvent weld) Condensulate 21.5mm/20mm reducer -> (as Specialist adhesive) Condensulate 20mm flexible pipe.
It has recently failed and is leaking just inside the wall, presumably at the joint between the Condensulate and the interior PVC pipe. This was made with the supplied Condensulate connectors and their recommended adhesive as it means a joint between PVC and a non-mating flexible material which cannot be solvent welded, ( maybe PP?). The adhesive was a two part with a primer coating painted on the Condensulate pipe then left to cure and an adhesive proper applied after a short wait. (I know all of this as I had never come across it before and I asked to be there to see it done.)
Of course the condensate is acidic but this is often overstressed as it is only as acidic as sharp orange juice and other kitchen chemicals. Yes, it is not diluted in the same way as kitchen waste but surely PVC joints and specialist...
Read more
Continue reading...
