in response, as a professional
tiler specialising in domestic work, i want to guarantee my customers that their shower enclosure wont leak, not that if or when it does there is damage limitation in place!
this is the point i have been driving at and no-one so far has convinced me otherwise!
if epoxy grout stops this, why not just use it?
also hardibacker boards are waterproof anyway.
ps i dont want to "sell" tanking i want to do the best tiling job possible.
i am happy to put the stuff on, god knows its not rocket science, i am just uncomfortable with the thought of water behind my tiles!
best regards, adam