What is an indirect cross-connection?

This is a temporary cross-connection that may exist for a short period of time. A good example of an indirect cross-connection is a garden hose attached to an outside hose bib with the end of the hose submerged in a pail, swimming pool, or pesticide dispenser. Of additional concern is that some people use the garden hose to flush out sewers and drain pipes.

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1. What is a Backflow prevention program?
2. What is a cross-connection?
3. What is backflow?
4. How can this happen?
5. What is an indirect cross-connection?
6. If I have a well that is not connected to drinking water, do I still need a backflow preventer?
7. Why does this backflow preventer need to be installed in the front of my house?
8. Can I cover or hide the backflow preventer?
9. Why do backflow preventers need to be tested every year?
10. My backflow preventer sometimes leaks water from a relief valve. Can I remove or plug the valve to prevent water loss?