Drainage
1. new down stairs toilet against outside wall . Pipes had be at outside at side of house. Builder put them almost on the surface, saying if he puts them deeper they will not connect at other end into the inspection chamber. Is this acceptable? I now cannot creat a path eg blocks, slabs, tarbac etc. No nearby vent pipe . Does it need vent pipe outside ? If no vent does it need AAV? if so can AAV go on the outside and where ?
2. Upstairs toilets , does every toilet and every WHB need a direct link to the vent pipe outside? Plumber is saying no . He said no AAV is not needed upstairs as toilets link directly to soil stack on the outside . The plans and Bregs did say AAV on each toilet but Plumber .
3. does the kitchen sinks need to connect to vent pipe
thanks
1. new down stairs toilet against outside wall . Pipes had be at outside at side of house. Builder put them almost on the surface, saying if he puts them deeper they will not connect at other end into the inspection chamber. Is this acceptable? I now cannot creat a path eg blocks, slabs, tarbac etc. No nearby vent pipe . Does it need vent pipe outside ? If no vent does it need AAV? if so can AAV go on the outside and where ?
2. Upstairs toilets , does every toilet and every WHB need a direct link to the vent pipe outside? Plumber is saying no . He said no AAV is not needed upstairs as toilets link directly to soil stack on the outside . The plans and Bregs did say AAV on each toilet but Plumber .
3. does the kitchen sinks need to connect to vent pipe
thanks