I'm installing a new bathroom. I have a combined drain for the bath and shower (2 x 40mm >> 50mm >> stack) and have a McAlpine VP2 AAV to fit under the bath to avoid syphoning of the shower trap. Is this type of AAV correct and how high does it have to be above the bath/shower traps? Thank you.
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View the thread, titled "What height should a AAV be under bath?" which is posted in UK Plumbers Forums on UK Plumbers Forums.
As it’s a1 you can have it where ever you want height wise as it’s Permitted to be located below flood level of connected appliances
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Reply to the thread, titled "What height should a AAV be under bath?" which is posted in UK Plumbers Forums on Plumbers Forums.
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