5" carbon steel hole saw with mandrel and pilot bit. This is the proper size for 4" Multi-tite and Jones-tite grommets which are used with the tank inlets and overflow siphons.
Rain Harvesting Pty Tank Gauge™ Tank Level Monitor The RainHarvesting Tank Gauge™ is a water level indicator that is simple and easy to install. Suitable for all vented tanks up to 100" in height. Features an easy-to-read display dial and utilizes a weight float, suspended on a string line to provide accurate readings. Gauge is fitted to the tank via two screws provided.
Multi-Tite Gaskets Multi-Tite gaskets are used where pipes connect to the inlets and outlets of polyethylene, fiberglass and FRP water tanks and cisterns.
