Hi All need to run some pipe for the outlet the washing machine (10-15m around a few bends). Is there are particular type that is stronger / resident to being be stepped on by mistake - long story !!
You don't want barrier pipe for the output- for that length run you'd need 40mm waste pipe at the very least. For the supply, neither one is very good for crush resistance- pipe should be clipped/fixed so it won't be trodden on.