Thread: Waste pipe - DWV

Gidday
I would like to get some feedback on my plan to lower a protruding plumbing assembly.

I have two ceramic DWV assemblies, one inside the laundry which drops straight down to a s-trap and the other about 20cm away on the other side of the laundry wall that joins into the laundry one about 50cm down

I would like to lower the laundry one so I can level off the old concrete floor and upgrade the old iron grate with a PVC cap/plate. The pan section is now redundant as I have moved the grey water to the DWV outside.

At present the assembly protrudes about 20mm above what will be level after I have leveled off with a leveling compound. I am not going to permametly cap it as it is the most direct access to the s-trap.

I was planing to run a few cuts with a ceramic blade around the top, chip out the protruding rim, insert a short PCV sleeve with removable cap into the vent and fill the pan with concrete.

This is opposed to making a very big hole in the concrete and cutting off below the entire pan.

I am not sure DWV is the correct name for this thingo - its one of those cermic pans that accomodates waste pipes and has a round vent - could be a gully trap maybe?