F
FeelingCold
Good morning.
Firstly, thanks to the advice so many of you have provided over the years.
I'm in the final stages of renovation and I have specific questions relating to the venting of our kitchen waste water. Please see the attached pdf for my attempt at a plumbing diagram.
We have a dedicated 110 underground waste pipe to which only the dishwasher and sink will be plumbed.
Issues:
1. It is not possible to vent naturally from this area.
2. The 110 waste from kitchen is 5m to the join of the main waste drain, which is a further 3m to the main vent stack
2. the "riser" of the 110 waste is positioned in the wrong place in the kitchen..(don't ask.)
3. There is only a 50 mm void behind kitchen cabinets/sink and therefore cannot have a 110mm Durgo.
4. Void can probably be increased by 10/15 mm by chasing out plaster/render; but not further into the party wall.
Proposal:
I am proposing to use a reducer from 110 to 40 at a level near the floor (cabinets have 150mm vertical clearance).
Plum sink/dishwasher into the 40 drain and using either a 32 or 56 Durgo to balance the system. The diagram of the kitchen sink in the pdf probably better shows what I'm trying to say.
Questions:
Will a small diameter (32/56) Durgo work correctly with 110mm waste drain?
Would this proposed configuration be legal?
Is there a better solution?
My architect says that he has only ever fitted a 110 Durgo to 110 drain in the past.
Thanks in advance.
Andy
Firstly, thanks to the advice so many of you have provided over the years.
I'm in the final stages of renovation and I have specific questions relating to the venting of our kitchen waste water. Please see the attached pdf for my attempt at a plumbing diagram.
We have a dedicated 110 underground waste pipe to which only the dishwasher and sink will be plumbed.
Issues:
1. It is not possible to vent naturally from this area.
2. The 110 waste from kitchen is 5m to the join of the main waste drain, which is a further 3m to the main vent stack
2. the "riser" of the 110 waste is positioned in the wrong place in the kitchen..(don't ask.)
3. There is only a 50 mm void behind kitchen cabinets/sink and therefore cannot have a 110mm Durgo.
4. Void can probably be increased by 10/15 mm by chasing out plaster/render; but not further into the party wall.
Proposal:
I am proposing to use a reducer from 110 to 40 at a level near the floor (cabinets have 150mm vertical clearance).
Plum sink/dishwasher into the 40 drain and using either a 32 or 56 Durgo to balance the system. The diagram of the kitchen sink in the pdf probably better shows what I'm trying to say.
Questions:
Will a small diameter (32/56) Durgo work correctly with 110mm waste drain?
Would this proposed configuration be legal?
Is there a better solution?
My architect says that he has only ever fitted a 110 Durgo to 110 drain in the past.
Thanks in advance.
Andy
