Managing the pumping and flow control in a botanical treatment system requires simple but reliable automation. The Greywater Water Organizing Module (gWOM) and Toilet Water Organizing Module (tWOM) are component assemblies that package the pumps, float switches, and valving needed to manage these flows into serviceable units. The gWOM monitors the treated water level in the interior botanical cell and activates the pump to supply toilet cisterns when water is available. The tWOM manages the interface between the toilet cisterns and the botanical treatment system, with a backup supply from the potable system when treated water is insufficient.

These control systems are detailed in Book 6 of this series. They are designed to be serviceable by non-specialists using standard plumbing components available at any hardware store.