Plumbing for Washing Machines or Dishwashers

Replacing a Radiator
May 6, 2014
Gravity Heat System
July 26, 2014
Show all

Generally the water for these appliances is supplied through fitted flexible hoses that have their own in line isolators. The isolators will allow for easy isolation if the machines ever need to be removed. The majority of washing machines are now only fitted with one cold water supply. This may or may not apply to a dishwasher. Should you want to install the appliances close to a sink drain or another waste outlet, the machines waste hoses could be routed to these fairly easily. If this is not the case, then, new pipe runs will need to be required for the new location. Woodford Plumbers are professional tradesmen.
Water Connection:

Isolate the water and drain the pipework where you want make your connection. If you are coming from a pipe that is already fitted, cut the pipe and fit a “T” piece. You will need to make two cuts in the pipework to allow for the fitting. Connect the fitting (soldered or compression). Run a piece of pipe between the “T” and the new machine. Plumb in an isolator in this branch to allow for emergency or repairs. Some appliances have integral isolating valves. Put a connector onto the end of the pipe to which the rubber hose from the machine will connect. Check the size and thread on this before buying. A Woodford Plumber is qualified to fit all appliances.

Waste Pipe:
Different options are available for the waste pipework from these machines.
The usual arrangement is for the machine’s flexible waste outlet to run into a standpipe. The pipe diameter is normally 40mm.
Fit a waste pipe through the wall to discharge to the main drain. This needs to have a sufficient fall or slope for the volume of water. This is normally recommended as 6mm for 300mm length.
Fit a trap to the inside end at floor level adjacent to the machine. Cut and fit a standpipe to the top of the trap. The length for this is 600mm from the base of the trap. Insert the flexible waste into the standpipe by the recommended amount. Turn on the water supply and test the installation for any leaking.

Leave a Reply

Your email address will not be published. Required fields are marked *