Most washing machine waste hoses usually come with a pre set bend which takes the hose into the top of the stand pipe about 200mm. Washing machines and dishwashers, once installed, must deliver their waste water to the foul drainage system for your home. This is the same system which takes the toilet and basin waste. It is illegal to put this waste water into your surface water system which is the water collected by your gutters. I have illustrated an image below for you to make it easier to see what they are. Spigots on a waste trap

In terms of the waste trap itself the document states that it should be at minimum 40mm in diameter and the depth water in the trap to form an effective seal should be at least 75mm. In some cases like this it may be possible to extend the waste pipe hose on the appliance to reach a little further but this should only be done if the manufacturer allows it and you use the correct extension kit stated by the manufacturers and that it doesn’t exceed a total length once extended of more than 1.5 metres. Place a joiner on the end of the existing pipe and glue it in place. Add any further pipe joints to remake any waste outlets that you cut away e.g. sink waste etc. We always prefer to use solvent weld or compression fittings when it comes to waste pipes because once it is made, it stays together and there is no chance of any leaky joints. Measure the height of the appliance from the ground and mark it’s height on the wall. Use a tape measure to measure from the base of the collar of the compression joint up to the line on the wall defining the appliance height.

Cleaning and Maintaining Waste Traps

Installing a self sealing vent, because it reduces negative pressure in the waste system, can be used to remove the noises associated with gurgling pipes and basins. It also removes the need for air admittance valves. Positioning Appliances and Waste Outlets this is one situation that pops up frequently, what do you do if you have both a dishwasher and washing machine trying to connect up to a single spigot? Well, I talk about this in more detail here, but I will add the TL;DR below! Due to the nature of the areas in which sinks tend to exist, waste traps can over time fill up with all sorts of unmentionable substances. If you do this, make sure that you run your machine empty the next time you use to clear out any unwanted chemicals in there.

In this case you can simply drill a hole through the wall and run the appliance waste through it out to the drain or connect to the soil pipe using a strap on boss. Once the waste hose is connected you can tighten up the jubilee clip to make the hose really secure. Jubilee Clip On Washing Machine Waste Pipe One other very important factor to consider when it comes to waste trap installation is where the appliance is to be installed.This is due to the fact that any new pipework that will need to be installed for any wastes can be kept to a minimum, especially if using a combined sink and appliance waste trap as the appliance waste hose is only a set length. Slip the body of the compression waste over the end of the new horizontal run of pipe (or pipe through wall if running externally) until it hits the end of the collar and then slip the seal and washer down to the end and then screw the cap up tight, ensuring the inlet is pointing directly 90° upwards. Once cut, add the screw cap, seal and washer to the base of the pipe and push it into the compression waste and then push the washer and seal down and screw the screw cap up tightly. This is one of those jobs you’ve probably never given much thought to until it comes time to install a washing machine in a new house and everything isn’t quite set up the same as it was in the old place. Maybe the waste pipes under the sink are all different, or perhaps you can’t even see anywhere to attach the hose to. Well worry not, we have all bases covered here, so continue on and read our guide. Connecting Washing Machine Waste Pipe