Installing a channel drain and applying a polyethylene tanking system

How to apply a liquid and polyethylene sheet tanking system to one of our channels. This channel is designed to fit tight to all three walls with 17mm horizontal flanges to suit a 10mm tile, tile adhesive, and tanking membrane.
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The outlets were positioned off centre to avoid joist and services below.

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Detailed instructions:

1A Level and flat floor

2A Profile guide for notching joists

2A.1

2A.2

2A.3

2B Notch to joist 11mm / 15mm depending on profile

2C Notched joist

2D Notched joist

3A Locating and supporting lower part

3B Locating and supporting lower part

3C Locating and supporting lower part

4A Connect waste pipe to lower part

5A Silicone grease to lower part seal O ring

5A.1 Push Channel into lower part

5B Push channel onto lower part

6A Channel pushed tight to lower part

6B Channel pushed tight to lower part

7A Fix channel with stainless steel screws provide

7B Fix channel with stainless steel screws provided

8A Trap supporting ring

8B Silicone grease to trap seal

8C Insert trap down to supporting ring

9A insert filter basket

9B Insert grate to channel

9C Insert grate to channel

10A Clean channel flanges

11A Apply seal strip to vertical and horizontal flanges

11B Apply seal strip to flanges

11C Apply seal strip to flanges

11D apply seal strip to flanges

11E Apply seal strip to flanges

11F Apply seal strip strip to flanges

11G Apply seal strip to flanges

12A Polyethylene cut to size

12B Ployethylene membrane cut to size

12C Polyethylene and sealing membrane

12D Polyethylene and sealing membrane

12E Polyethylene and sealing membrane

12F Channel tanked to wetroom floor