I fitted a new bath (plastic) retalied the wall etc problem is then when full the bath drops down 1/2 inch causing the bathe sealent to tear I have supported the bath from underneath any help would be gratefull
Measure the hight of the bath from the floor.
Go to Wicks or similar and buy some sheets of polystyrene or similar. Stuff most of the space between the underneath of the bath and floor with sheets of polystyrene then fill the space between the bottom of the bath and the top of the polystyrene with expanding foam, this will expand to fit the shape of the bath and will offer firm overall support.
Perry525, March 2008
when you tiled the wall you SHOULD HAVE FILLED THE BATH half way with water ideally the tiles should have been fitted lower than the top of the bath BEFORE offering the bath into position