(04) Distance strip
(Wooden timber floor structure with 22 mm plywood)
For positioning of the drain unit at the correct height over the floor beams a distance strip is placed (h= 21mm) the whole length/width of the drain unit. The strip isi placed under the floor flanges right behind the bent edge.
The strip is fastened in a responsible manner in the beams/trimmings with 4 x 80 mm counter sunk screws.
NB:
Make sure that the strip is completely horizontal!