Onsite system dosing requirements seem to be getting smaller and smaller.
In the state of Wisconsin, our designs have a strict limit of a dose being equal to or less than 20% of the design wastewater flow. There are times where the design flow does become a slight issue and design parameters have to be changed.
An example of smaller doses is when using certain media chambers a dose is limited to 4 gallons per chamber. If the system is designed with only 16 chambers, that’s only a 64-gallon dose (plus void volume of the force main, of course). Recently, I’ve been
Float Switches 2.0: Achieving Smaller Dosing Requirements
Smaller and smaller doses require changing what float switches are used and how the doses are generated
Jun 11, 2025
| by Todd Stair |

















