In a previous blog post, we discussed what a cross connection is and listed some of the devices to stop cross connection. In this post, we’ll discuss some of the ways to prevent them.
There are two methods an operator can use to protect against cross connections – isolation and containment. Isolation is defined as protecting the consumer at the supply end. Containment is defined as protecting the water system at the service connection. Illustrations of both can be found below.
Before an operator embarks to get a cross-connection control program in place for a utility, a few factors must be taken into account:
- Local ordinances – These define the roles, responsibilities, penalties, legalities, etc.
- Surveys – These locate cross connections, assess the potential hazards and assign the appropriate devices.
- Certification–It is important to train and certify the installers, testers and repairers and certify the viability of the device at least annually.
- Education – Educate everyone––the local officials for funding and support, staff and installation contractors for implementation and your consumers for understanding, acceptance and support.
In addition, we have found that many operators are visual learners. The video below gives some general information about how to set up a cross-connection control program. It will also provide a better understanding of cross connections and why they can happen to any size system.