Adding water to a boiler, often referred to as topping up the pressure, involves a few key steps. According to the provided YouTube reference, it mainly involves adjusting tabs or valves to allow water to enter the system.
Here's a step-by-step guide:
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Locate the Filling Loop: This is usually a flexible braided hose with valves at either end, connecting the mains water supply to your central heating system.
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Open the Valves:
- The video indicates that you need to turn one or both tabs or valves 90 degrees so they are across the pipe. This opens the valves and allows water to flow into the system.
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Monitor the Pressure Gauge: Watch the pressure gauge on your boiler. The ideal pressure is usually between 1 and 1.5 bar (check your boiler's manual for the specific recommended pressure).
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Close the Valves: Once the pressure reaches the recommended level, turn the tabs or valves back to their original position (in line with the pipe). This shuts off the water supply.
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Check for Over-Pressurization: If you accidentally over-pressurize the system, you'll need to bleed a radiator to release some pressure, as mentioned in the video. This involves opening the bleed valve (usually with a radiator key) until water starts to drip out, which will lower the system's pressure.
Important Considerations:
- Boiler Manual: Always consult your boiler's manual for specific instructions related to your model. Different boilers may have slightly different procedures.
- Safety First: If you are uncomfortable performing these steps or are unsure about anything, it is best to contact a qualified heating engineer.
