Our ‘click clack’ channels ensures that installing the SABDrain channels is easy & fast. For the best strength performance, it is imperative that the channel & grate is installed correctly. If installed incorrectly, you run the risk of the channel & grate collapsing and not standing the test of time.
Excavation & Concrete Base
SABDrain drainage systems uses an M type channel and thus requires the strengthening of concrete to support loads of vertical and horizontal thrust. In creating a concrete haunch to lock the channel, it enables it to meet the required load rating as specified in AS4058 – 2006.
Excavation Design
The size of the trench will need to take into account the dimension & rating of the channel to determine the depth & width of the trench ( see below table). The trench should be excavated from the lowest point of discharge to the highest point. The base should be compacted well particularly if the ground is soft.
Concrete Base
Lay the concrete base to the recommended thickness as specified in the table below, using a minimum strength of 25 MPA. Allow enough gradient in the base for water drainage.
Assembly of Channel
Assemble your channels to your desired length, and slide in your endcaps & connect any pipes you may be using.
Assembly Of Grates
Insert the metal edges (supplied with edgeless channels). Assemble grates & lockdown. Screw & tighten screws to secure grates and lockdown pieces, ensuring not to tighten screws too much as they will snap.
Final Steps Of Installing SABDrain
Widen the anchors to an inclination of 45 degrees from the channel
Position inside the trench starting from the lowest point of discharge, ensuring that each channel unit is locked securely together and aligned. Place concrete along the sides of the channel making sure it is worked into the ribbing along the base and sides, paying particular attention to the grate support edge.
We highly recommend the vibrating & compacting of the cement
Enjoy your new drainage 🙂 We love seeing photos of our drains being installed, and after its finished- feel free to send some pictures over to us via Instagram or email us.