Channel Drain Installation Sydney

Driveway channel drains take the water that sheets across a concrete driveway before it reaches the garage or the street. Where the surface is already down, we add a grated drain for driveway drainage by cutting a line and pouring a new channel. ACO (a drain manufacturer) makes the DrainLine 100 channel, with a 100 mm internal width and a polymer concrete body that takes light vehicle traffic. ACO surrounds its trench drain with 100 mm of concrete on driveways, as its installation instruction sets out. Grates come in galvanised steel, stainless steel and plastic. A national cost guide prices surface drainage job by job. The same guide says drainage planned at build time costs a fraction of a retrofit once the surfaces are down.

We lay pool strip drains around the paving so splash and rain run to the channel instead of pooling on the surround. A stainless steel strip drain suits bare feet. ACO's DrainLine 100 grates come in stainless steel Heelguard and plastic, so a heel guard grate can match the paving. The work covers the surround only: we don't touch pool water, backwash or pool equipment. A blocked pool drain is a clearing job rather than an install.

When paving runs flush to a door, a slot drain catches the water before it reaches the doorway. A slot drain is a channel drain with a narrow slot along the top. A tile insert grate holds tiles to match the paving, so the drain disappears into the surface. The National Construction Code (NCC) sets the levels. NCC 2022 Housing Provisions 3.3.3 sets a slab-on-ground at least 50 mm above paved or concrete areas that slope away, per the NCC 2022 drainage clauses. The finished surface falls at least 50 mm over the first metre. Those two 50 mm figures set how far below the door the paving sits. ACO's Brickslot channel suits brick or stone pavers up to 63 mm deep. Sydney Water's correct-connection diagram shows the gully trap undamaged and sitting above ground level. A gully trap is the raised outside grate where the house sewer overflows. ACO says a strip drain catches water along its whole length, before the water can pool at a doorway.

Stopping water at the garage door takes a garage drain set into the slab outside the door, so run-off sheets into the grate instead of under the door. A garage crossing with no drain leaves water pooling at the door after rain. Mosman Council adopted its stormwater policy on 3 December 2024. Mosman Council's stormwater policy bars pump systems for disposing of surface stormwater under any circumstances. Gravity is the only route up to the street. Mosman expects to approve on-site absorption only for driveways and single garages or carports. Our absorption trench page covers that route, with trench sizing and the engineer's report. NCC 2022 Housing Provisions 3.3.5(b) has the stormwater system designed so overflow in heavy rain can't flow back into the building. Mosman says charged systems don't drain ground surfaces, so they don't suit a channel drain.