Diyisfun said:Its great reading the bickering between you two.
I followed the link to the Hepvo plumbing technical design guide. They do state, ‘ the inclusion of an air admittance valve in the waste system is no longer necessary’.
So should this matter be directed to Hepvo?
Softus said:You seem to have stopped claiming that a HepVo trap can replace a vent.
Is that because you've realised that you were wrong, or because you've learned some words and understood what they mean?
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