Without proper protection devices, something as useful as your garden hose has the potential to poison your home's water supply. In fact, over half of the nation's cross-connections involve unprotected garden hoses.

What is a "cross-connection?"

A cross-connection is a permanent or temporary piping arrangement which can allow your drinking water to be contaminated if a backflow condition occurs.

What is "backflow"?

It's just what it sounds like: the water is flowing in the opposite direction from its normal flow. With the direction of flow reversed, due to a change in pressures, backflow can allow contaminants to enter our drinking water system through cross-connections.

A potentially hazardous cross-connection occurs every time someone uses a garden hose sprayer to apply insecticides or herbicides to their lawn. Another cross-connection occurs when someone uses their garden hose to clear a stoppage in their sewer line.

Without a backflow prevention device between your hose and hose bibb (spigot or outside faucet), the contents of the hose and anything it is connected to can backflow into the piping system and contaminate your drinking water.

This hazardous situation sometimes can affect more than a single home. In 1977, an entire town in North Dakota had to be rationed drinking water from National Guard water trucks while the town's water distribution system was flushed and disinfected following contamination by DDT. Investigation determined that two residents spraying DDT had made direct cross-connections to their homes. A backflow condition had occurred, sucking the DDT through the home piping systems and out into the town's water distribution system.

Backflows due to cross-connections are serious plumbing problems. They can cause sickness and even death. However, they can be avoided by the use of proper protection devices. Each spigot at your home should have a hose-bibb vacuum breaker installed. This is a simple, inexpensive device which can be purchased at any plumbing or hardware store. Installation is as easy as attaching your garden hose to a spigot.

For more information on cross-connection control and backflow prevention for your home or business, please contact the Cross-Connection Control Division of Gainesville Regional Utilities at 352/334-3400.
Help us to preserve the quality of our drinking water supply. If at any time you notice a change in the look, smell or taste of your drinking water from Gainesville Regional Utilities, please contact our water treatment plant personnel at 374-2865.

Gainesville Regional Utilities
PO Box 490
Gainesville, FL 32602

This document was prepared in 1984 by Joe Sinardi and Les O'Brien for Gainesville Regional Utilities.

Return to Loben's home page
hvor du kan k?be Viagra K?b viagra uden K?be Viagra Viagra er en gennempr?vet Viagra bestil online Sildenafil Actavis 100 mg K?b viagra uden recept Cialis generisk Generisk Viagra Viagra orden Cialis priser cialis uden recept K?b Cialis Online Tadalafil Danmark