How Does a Siphon Dose a Drainfield?

All your siphon questions answered. This is your guide to understanding how siphons work for drainfield dosing.

Aug 04, 2022 | by Jim Anderson, Ph.D. |

Onsite Septic System Drainfield Component Drainfield

Dosing Siphons — Just as in applications requiring the use of pumps, it is important that there be a way to determine whether the flow delivered from the siphon is within the design specifications, so using digital cycle counters to establish the flow is a good practice.

An increasing number of systems are installed with siphons, so it’s important to understand how they work and what problems you might encounter. For those of you familiar with Consortium of Institutes for Decentralized Wastewater education materials, there are descriptions of how siphons operate in both the operation and maintenance service provider program manual and the installation of wastewater treatment system manual. These can be helpful references.A siphon delivers a set volume dose of effluent. The volume of effluent dosed depends on the size of the siphon bell and the height of the siphon trap. So, it is important that the

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