Thanks for the video it was very well well done. I think the new 3740 is going to assist with things being sealed for good, i get that some may opt for no voluntary waste with the associated costs but those costs are no worries for the serious builders, the high end. I think the more serious wont have a issue with fall to waste wherever theres a chance for water to encroach for whatever reason and membrane to 1500 from the shower if its not fully enclosed and why not the whole floor, in any case get the water stops in, all that, and if your enclosed its fully enclosed as required and in any case if water is around after 5 hours in normal conditions its deemed pooling, even with a enclosed shower water can get out from containment but at least make it unlikely if you have that situation you can have a flat floor and no waste just be able to address the 5 hour rule and your right under normal conditions. I got lots from this, great video Gripset as usual.

Builder i do work for their wetsealer does not recess puddle flanges anywhere. Trying to achieve fall to a smart waste is very difficult. Is there anything in the national code that states puddle flanges must be recessed on the 2nd story bathroom floors