Anyone know the regs with this.
Got two commercial toilets to refurb. The client wants to box (with access panels) the stub stacks. Currently they have an AAV on each.
I seem to remember you can buy a type which can be beneath the overflow height of the lowest sanitary item, but the idea that has been floated is to stick a smaller AAV on the top and vent it up through the suspended ceiling.
Any ideas on minimum size? I would have thought 2" would be OK but will have to dig out my WRAS book if no one on here knows! Ta.
Got two commercial toilets to refurb. The client wants to box (with access panels) the stub stacks. Currently they have an AAV on each.
I seem to remember you can buy a type which can be beneath the overflow height of the lowest sanitary item, but the idea that has been floated is to stick a smaller AAV on the top and vent it up through the suspended ceiling.
Any ideas on minimum size? I would have thought 2" would be OK but will have to dig out my WRAS book if no one on here knows! Ta.