An anti-siphon device is a plumbing mechanism designed to prevent the backflow of contaminated water into the clean water supply. It works by allowing air to enter the pipe, breaking the vacuum that could cause water to siphon backward. This is especially important in irrigation systems, outdoor faucets, and toilet tanks, where there is a risk of cross-contamination. Anti-siphon devices are often integrated into hose bibs, sprinkler systems, and water heaters to maintain water safety. They are crucial in preventing the unintended reverse flow of water, which can occur due to a sudden drop in pressure within the main water supply. Compliance with plumbing codes often requires the installation of anti-siphon valves to safeguard public health.
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