Understanding and Fixing Plumbing Air Locks
Air locks in plumbing systems can disrupt water flow and lead to frustrating interruptions in daily household activities. Recognising the symptoms and knowing how to address air locks can help you maintain a smooth-running plumbing system.
If you are struggling to get rid of these pesky and perplexing obstructions, call Best Plumbers Perth at (08) 7099 0536 for a proper assessment and advice.
This guide provides an overview of air locks and practical solutions for fixing them.
What is an Air Lock?
Definition of an Air Lock
An air lock in plumbing occurs when air becomes trapped within a section of a pipe, creating a barrier that prevents water from flowing freely. This blockage can lead to reduced water pressure or a complete stoppage of water flow in taps and appliances.
Causes of Air Locks
Pipe Design: Air locks often occur in poorly installed or sloped pipes, and systems with high and low points where air pockets accumulate, leading to air locks over time.
Water Supply Interruption: When the water supply is turned off and then back on, air can enter the pipes, causing an air lock. Abrupt changes in water pressure can have the same effect.
Drainage and Venting Issues: Inadequate venting can lead to air pockets forming in the plumbing system.
Failed or Aging Components: Worn-out or malfunctioning plumbing components, such as water heaters or pipes, may allow air to enter the system, increasing the likelihood of air locks forming.
Symptoms of an Air Lock
Reduced Water Pressure: One of the most common symptoms is reduced water pressure in taps and appliances. If you notice a weak or intermittent flow, an air lock could be the culprit.
Intermittent Water Flow: Instead of a steady stream, air locks can cause water to flow in spurts or intermittently, making tasks like showering or washing dishes frustrating.
Complete Blockage: In some cases, air locks can cause a complete blockage, resulting in no water flow from affected taps or appliances.
Noisy Pipes: Air trapped in the pipes can cause unusual noises, such as gurgling or banging, when water is turned on.
Fixing Air Locks
Manual Method
Identify the Affected Tap: Determine which tap or appliance is experiencing reduced or no water flow.
Turn Off the Water Supply: Locate the main water supply valve and turn it off to prevent water flow during the procedure.
Open All Taps: Open all taps in the house to drain any remaining water and release pressure in the pipes.
Reconnect the Water Supply: Turn the water supply back on slowly while keeping the taps open. This can help push the trapped air out of the system.
Close Taps Gradually: Once water flow returns to normal, close the taps one by one, starting from the lowest point in the house and working your way up.
Hosepipe Method
Connect a Hosepipe: Attach a hosepipe to the affected tap and connect the other end to a tap with a strong water supply (such as an outdoor tap).
Open Both Taps: Turn on both taps, allowing water from the stronger supply to flow into the affected tap. The force of the water can push the trapped air out of the pipes.
Monitor Water Flow: After a few minutes, check if the water flow has returned to normal. If it has, disconnect the hosepipe and turn off both taps.
Plunger Method
Use a Plunger: Place a cup plunger over the affected drain.
Create a Seal: Ensure a tight seal around the plunger to maximise the force exerted.
Plunge Vigorously: Push and pull the plunger vigorously to create pressure waves that can dislodge the trapped air.
Check Water Flow: Flush with hot water and test the water flow to see if the air lock has been cleared. Repeat the process if necessary.
Preventing Air Locks
Inspect Pipes Regularly: Regularly check your plumbing system for any signs of leaks or damage that could lead to air locks.
Ensure Proper Venting: Make sure your plumbing system has adequate venting to prevent air from becoming trapped.
Use Air Release Valves: Consider installing air release valves in your plumbing system. These valves automatically release trapped air, preventing air locks.
Turn Taps On Slowly: Avoid turning taps on and off too quickly, as this can introduce air into the system.
Regular Use: Regularly using all taps in your home can help prevent air from settling in the pipes.
Conclusion
Air locks in plumbing systems can be a nuisance, but understanding how to identify and fix them can save you time and hassle. Whether you opt for the manual method, hosepipe method, or seek professional assistance, addressing air locks promptly ensures a smooth and efficient plumbing system. Regular maintenance and proper usage habits can also help prevent air locks, keeping your household running smoothly.
If the above methods do not resolve the issue, it may be time to call a professional plumber like Best Plumbers Perth at (08) 7099 0536. We use specialised equipment to locate and remove air locks, ensuring the plumbing system functions correctly.
