Understanding Backflow Prevention Devices
In most parts of the world, clean water comes from either a communal source or the water main of the municipality. The water is diverted to people's house for several various purposes including irrigation, bathing, laundry work, cooking and drinking. Waste water is treated to kill pathogens such as harmful bacteria and get rid of chemicals that change the color and odor of water. Dirty water can cause diseases and death if it flows back into clean water pipes. There are devices used to help prevent this problem. They're referred to as backflow preventers.
Basically, water flows from high pressure areas to low pressure areas. The water in the main supply pipes has high pressure that enables it to flow into houses. However, the water pressure can drop in the event of water shortage or a supply line burst and leaks. Subsequently, dirt water may flow backward into the clean supply. Backflow preventers prevent the unclean water from flowing back.
Water that's not clean can flow back into the main supply from any point. Therefore, there are various kinds of backflow preventers suitable for different needs. For instance, water flowing out of your faucet can flow back into the faucet. This can result in contamination of the clean water supply. The majority of sinks prevent backflow using a simple air gap. The water in the sink can't reach the faucet because it's high above the sink's edge. The dirty water, instead, overflows onto your floor. The only way the dirty water would reach the faucet is if the room gets filled with water to the faucet's height.
Other backflow preventers, however, use reduced pressure areas and pressure check valves to prevent cases of contamination. Parts of the backflow preventer wear down with time. This reduces its ability to prevent contamination and maintain pressure. To properly maintain the backflow preventer, you should make sure the devices are serviced regularly so as to repair worn out or damaged parts. Parts that require regular repairs and service include reduced pressure one assemblies, O-rings, springs, diaphragms, single and double-check valves, check modules, RV seats and cam check disk assemblies. Check out Febco 765-1 pressure vacuum breaker repair for more details.
You can be charged for allowing unclean water to infiltrate the main supply if your backflow preventer is faulty. So, it's important to get quality backflow preventers as a preventive measure. This will enable you to avoid disasters that can be fatal. Consult a water system's specialist if you're not sure about the right backflow preventer to install. Know more about backflow prevention repair.