If installing a waste pipe run that is outside the limits for 50mm for a 4 meter run. Would an aav on run help more than just an anti vac trap on the appliance? There is only one appliance on the run.
By AAV do you mean anti vac trap of a 50mm vent on the run?I have 6m of 50mm serving a bath and basin with an AAV, no problems in 8 years.
Is it still a requirement for these to be fit above spill over level of the highest appliance?There's an anti-vac waste on the basin and something like this at the start of the main pipe run:
View attachment 231176
Is it still a requirement for these to be fit above spill over level of the highest appliance?
Is it still a requirement for these to be fit above spill over level of the highest appliance?
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