OSD Kit – Onsite Stormwater Detention Kit This on-site detention and retention kit has a 3-way junction, inspection cap and orifice plate. All fitting required for easy installation. Satisfy local council requirements installing an OSD kit direct into your water tank at the required height. Installer simply drills out the required hole in the side of the tank and also drills out the orifice plate as specified on the plans – then installs the OSD kit. Please note: As this is an after-market accessory, if there is any leakage around the install site, this is not covered by the tank manufacturer’s warranty. The installer would be required to mend.
