ACO ShowerDrain Technical NEW:ACO ShowerDrain Technical 05/12/2012 15:36 Page 37
Installation, Operation, Care and Maintenance
ACO wetroom former installation – screed floors 1. Confirm former location, orientation and
4. Connect electrical earth/equi-potential
7. Lightly abrade former upper surface with
optimum waste pipe run direction and
bonding connections to the M8 stud
120 grit sand paper to aid tanking
associated falls to soil and vent pipe.
provided if required
bonding. Apply tanking tape, primer and liquid membrane to all joints and surfaces
2. Run a continuous bead of silicone sealant
5. Prepare appropriate floor screed and bed
to manufacturers’ instructions.
between channel body and former. Locate
the assembled former into position
channel body into former and drill 8
ensuring it is evenly supported taking into
Ø3.2mm pilot holes 10mm deep
account the finished floor level and
adhesive ensuring adequate falls to
maximum & fix channel body to former
ensuring the outer uppermost edges of the
channel – see Figure B below. Ensure
using the 8 No 8 x 12mm self-tap screws
former are horizontal to ensure water will
channel top is 1 to 2mm below
provided.
drain to the channel via the pre-sloped
surrounding tiled surface. Grout tiles and
falls in the former. Allow screed to cure.
complete the wetroom installation.
8. Apply tiles using suitable flexible tile
3. Connect waste pipe using connector 6. Valley cut tiles to visible channel corners
supplied and test for leaks. Extend concrete anchor tangs on underside of
on former as required. See Figure A below.
channel to ensure positive key to
Remove tiles for safe storage.
concrete/screed.
37 Figure A. Cutting tiles to visible channel corner - allow for grout width
5½mm minimum for 1100 x 1100mm former 9½mm minimum for 1700 x 850mm former
Figure B. Checking falls to channel – both ways