Replacing the riser

Replacing the riser

First dismantling

Previously overlapping the fan analogue. If dismantling is not provided using the united keys, the outdated system is disassembled or knocked out. The old pipe is cut off on the site from the lower tee to the ceiling, leaving 150 mm to fix the adapter on it, which artifies the remaining cast -iron segment with plastic. A new riser from PVC in its upper part is mounted in this adapter. The lower segment is inserted into the remaining non -dismantled tee.