i am a developer building open market hostel accomodation in england,this type of
development involves building ensuit bath rooms that after a while,
start leaking on to other floors .what we need are fiberglass ensuit
pods of the type used in student accomodation cruise liners some
luxury hotels or law class hotels ,they r leak proof come in verious
sizes.not the concrete type.
http://www.europeanensuites.co.uk/fibre.htm
look at this site that is exactly what we need ,but they are expensive, some where
there should be other manufacturers can u help