Plumbing

Joining tanks together and external downpipe plumbing.

During delivery the tanks are placed onto firm base. The internal PVC pipes, which connect the tanks together, are simply pushed into position at time of delivery. Planter box tops are then placed on top, completing the installation process. Delivery and installation is made easy with the innovative design of the Landscape Tanks and rubber seals cast into the concrete for sealing.

Landscape Tanks feature a patented “O” ring seal for convenience, which is cast into the concrete for easy slip fitting of PVC pipes both internally for interconnecting the tanks together and for external downpipe pluming. This places the Landscape Tanks into a DIY category if required and allows for expansion and contraction.

Connecting storm water/downpipes pipes.

Landscape Tank storm water plumbing in identical to all other rainwater tanks. Each tank has different part numbers (see plumbing configurations) to suit a customer’s requirements and downpipes. These part numbers determine where the 50mm equalising port or the 90mm downpipe orifice is located in the tank. The inflow and overflow downpipes are usually connected to the end tank through standard 90mm pipes (see below) and the water equalises through the 50mm equalising ports as required. In some cases it may be necessary to have an inflow and overflow in both end tanks. In the below pic the water is collected off the roof from the building behind the tanks and passes underground (charged system) and then back up into the tanks.

Note: Because the rubber “O” ring external measurement is quite large (200mm) it is not possible to cast into the wall of the tanks too close to the top of the tanks and as such it would seem the overflow orifice is quite low in the side (or end of the tank). This would seem to limit the capacity of the tanks; however this is overcome by placing an elbow upwards on the inside of the tank during installation thus raising the water level to correct height.