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• Is a faucet located on the outside wall of the house that easily hooks to garden hoses.
• The best type is a frost-proof sill cock, made of heavy red brass, that looks and works like any ordinary faucet. However, water flow valves are located inside the building where it is warm.
• The anti-siphon frost-proof sill cock employs integral back-siphon and back-flow devices. These serve to prevent potential back-siphonage, which, if unchecked, could compromise the safe potable water supply to the home. Hose-attached garden sprays and other pressurized canisters can potentially link a cross-connection if a pressure charge occurs when the frostproof is in the open position.
• The anti-siphon frostproof sillcock allows for outside spigot usage in freezing climates. The closing member (seat washer) is located inside the heated building.