Purging is a method used to remove air or gas pockets from water lines or plumbing systems. Air pockets can accumulate in water lines due to several reasons, such as:
- New installations: When adding or modifying pipes or fixtures, air can enter the system.
- Water line breaks: If a water line bursts or leaks, air can enter the system during the repair process.
- Water line shutdown: When a water line is temporarily closed off for repairs or maintenance, air can enter the system.
Purging the Water Lines
To purge the water lines, start by locating the main water supply valve, usually near the meter or in the basement. Turn off the main water supply valve and open faucets on all floors of the house, including outdoor spigots. By opening the faucets, you allow trapped air to escape from the lines. Once the air is removed, close the faucets and turn the main water supply valve back on. This process should help restore normal water flow and pressure.
The Impact of Purging on Water Pressure
Purging is primarily aimed at eliminating air pockets from the water lines and restoring proper water flow. It is not intended to directly change the water pressure unless the pressure issues were caused by the trapped air. If the underlying cause of the low water pressure is unrelated to air in the lines, then purging may not have a significant impact on water pressure improvement.
Other Factors Affecting Water Pressure
While purging can be a simple and effective solution for low water pressure caused by air pockets, it is crucial to consider other factors that may be affecting water pressure. Some common factors include:
- Water leaks or clogs: A leak or clog in the pipes can lead to reduced water flow and pressure. In such cases, repairing or clearing the blockage is necessary.
- Water meter size: Water meter size is determined by the water needs of a property. Upgrading the meter may be necessary if the existing one is inadequate for the household’s demand.
- City or municipal supply issues: Water pressure can fluctuate due to maintenance or issues with the city or municipal water supply. In these cases, contacting the water provider is necessary.
Purging the water lines can be an effective solution for low water pressure caused by trapped air. It allows air pockets to escape and restores normal water flow. However, it is essential to recognize that purging may not always directly change water pressure if the underlying issue is unrelated to air in the lines. Considering other potential factors influencing water pressure is crucial for identifying and resolving any pressure-related issues in your home.