1. Apply a suitable waterproof membrane to the surface of the wall and allow sufficient drying time.

2. Install AUSDRAIN Filter Pipe or appropriate drainage line to base of wall allowing sufficient fall to the outlet.

3. Place Walldrain Panels against the wall above the drainage line and ensure that the base of the panel is unobstructed by fabric so as to be free draining.

4. Fix the top of each panel to the wall being careful not to damage the water proof membrane.

5. Back-fill the drainage line at the base with coarse washed river sand to prevent clogging.

6. The Walldrain Panels can now be backfilled with clean fill (no sharp objects).

1. If the waterproof coating is 1.9m high, apply the sheet horizontally straight from the roll and trim it to size as required. On higher walls, apply the sheet vertically from top to bottom. Use a carpet knife to cut the sheet to the required length across the roll.

2. The permanent-filtration geotextile should always face the soil. If the exact level of the ground surface is not known, attach the sheets above the upper edge of the waterproof layer, making sure that they reach about 10cm higher than the waterproofing itself. After backfilling, trim the sheets in parallel with the surface of the soil. At the bottom, sheets end atop the drainpipe, which should be surrounded on all sides with a layer of permanent-filtration material at least 15 cm thick

3. For easy overlapping, each sheet features an undimpled strip approx. 14cm wide along one edge. Lift up the geotextile and push the next sheet underneath it. To lengthen a vertically installed sheet, push the next sheet underneath for a minimum length of 20cm. Connect the two with no less than 4 DELTA-HAFTNAGEL adhesive pins. Fix the separating foil to the glue of the DELTA-HAFTNAGEL pins.

4. Before attaching a sheet to an outside corner, crease it along the line of the edge. Place plastic light wells directly on top of the sheet. Window openings can be cut out later. When light wells have already been installed, cut the sheet precisely along their lower edge and make one vertical cut in the middle.