Washing Machine and Dryer Waste

[rob_j20]

Will these two fit together to allow me to drain a washing machine and dryer, not at the same time.

http://www.screwfix.com/p/floplast-washing-machine-trap-white-40mm/18640

with the dryer using this.

http://www.screwfix.com/p/floplast-appliance-trap-adaptor-white-40mm/11180

Or is it better to add a T piece to the standpipe and have two one for each appliance.

Also whats the max run of 40mm

 

[Hugh Jaleak]

Use the standpipe as in your link, then fit one of these to the top. http://www.wickes.co.uk/McAlpine-V33WM-Connection-for-Standpipe-Trap-38mm/p/227038 (It's upside down in the picture. )


Max run of 40mm is 3m.

 

[rob_j20]

Thanks that's a nice tidy option. Are there any options to go longer than 3m with 40mm.

 

[Hugh Jaleak]

Regs allow you to upsize to 50mm after 3m, for another metre. However, there are longer runs than that out there I suspect. How far do you need to go, and where is it discharging?

 

[rob_j20]

Discharging into a drain need to go along a wall for about 3 meters then through a wall then a 90 degree into the drain, might also need a couple of other fittings to bring it away from the wall enough for the hole I have yet to drill, doubt I can drill close enough to the wall.

 

[Hugh Jaleak]

If only a short distance further I wouldn't worry too much. If using solvent weld pipework, I always fit a Tee outside, with a cleaning eye to allow future maintenance back along inside the building. Dog leg it with 45's if you can, elbows slow the flow down too much.

 

[rob_j20]

Okay thanks for the advice.