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What to do if your frost-free hydrant is not providing water?

April 5, 2026

Quick Answer

Check the hydrant's airlock and make sure it's functioning properly, then inspect the water supply lines for blockages or kinks. If the issue persists, consider draining the system and refilling it to clear any air pockets or debris.

Inspecting the Airlock and Water Supply Lines

Inspect the frost-free hydrant’s airlock for any signs of damage or corrosion. If the airlock is damaged, replace it immediately to prevent further issues. Check the water supply lines for kinks, blockages, or freeze damage. Make sure all connections are secure and not leaking. Use a garden hose to check for leaks by submerging the hose in a bucket of soapy water and spraying it onto the connections.

Draining and Refilling the System

Drain the water from the hydrant and its supply lines by opening the lowest valve and allowing the water to flow out. You may need to use a hose to drain the system completely. Once drained, refill the system by opening the lowest valve and allowing water to flow back in. Continue to refill the system until you reach the desired water pressure. Make sure to check the airlock and water supply lines again for any signs of damage or blockages.

Troubleshooting and Maintenance

Regular maintenance is key to preventing issues with your frost-free hydrant. Check the airlock and water supply lines every 6-12 months to ensure they’re functioning properly. Consider installing a freeze-proof hydrant or winterizing the system during cold weather months to prevent damage from freezing temperatures. Always follow the manufacturer’s instructions for maintenance and repair to ensure the longevity of your hydrant.

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