We would like to convert part of our conservatory into a utility room, which means digging a new drain. The drain will need to take waste from a sink, and washing machine, but no toilet/shower.
Plan so far is to dig a trench as per the diagram below, to an existing manhole. Piccie of manhole attached.
Fall will be 1:40
Plan to then fill trench as follows
1. 100 mm of pea gravel < 15mm
2. 110mm plastic soil pipe
3. 100 mm of pea gravel from top of pipe
4. backfill
My questions are
1. Do I need to provide rodding access at each change in direction (green boxes). If so, do I get a bend with an access port like this? http://www.wickes.co.uk/Wickes-110mm-87-5-Deg-Access-Bend/p/133866. How do I get access to the access port from the surface?
2. The washing machine will probably connect to a combined trap on the sink, so there will only be 1 40mm waste pipe going into this new drain. How do I bring the 110mm up above ground (red box) and connect the 40mm pipe to it?
3. How best to do the additional connection into the manhole. The pipe will come from the left. Can the pipe enter the chamber just above the benching on the left hand side?
I haven't yet spoken to Building Control, but I will do on Monday.
Plan so far is to dig a trench as per the diagram below, to an existing manhole. Piccie of manhole attached.
Fall will be 1:40
Plan to then fill trench as follows
1. 100 mm of pea gravel < 15mm
2. 110mm plastic soil pipe
3. 100 mm of pea gravel from top of pipe
4. backfill
My questions are
1. Do I need to provide rodding access at each change in direction (green boxes). If so, do I get a bend with an access port like this? http://www.wickes.co.uk/Wickes-110mm-87-5-Deg-Access-Bend/p/133866. How do I get access to the access port from the surface?
2. The washing machine will probably connect to a combined trap on the sink, so there will only be 1 40mm waste pipe going into this new drain. How do I bring the 110mm up above ground (red box) and connect the 40mm pipe to it?
3. How best to do the additional connection into the manhole. The pipe will come from the left. Can the pipe enter the chamber just above the benching on the left hand side?
I haven't yet spoken to Building Control, but I will do on Monday.