Undoubtedly, a water filter is the most important home appliance that more than 77% of Americans use at home. Most of us own a whole-house water filter to make a community or private well water safe for drinking. But what if your water filter starts leaking from the pressure relief button? Isn’t it annoying?
If the water filter is leaking from the pressure relief button, there may be some debris or dirt around it. To fix that, push this button repeatedly to clean. If it fails, it might be happening due to a loose Phillips or dried O-ring underneath the pressure relief button.
In this blog post, we’ll explain why water is coming out of the pressure relief button. Additionally, we’ll also describe how to stop the pressure relief button from leaking.
Why is My Pressure Relief Button Leaking in the Water Filter?

If your well water or whole house water filter is leaking from the pressure relief button, this could happen due to the following reasons.
- Debris accumulation around the O-ring
- Choke pressure relief button
- Dried or torn o-ring
- Loose Phillips screw.
How do I Fix a Leaking Pressure Relief Button?
If your water filter is leaking from the pressure release button, you can fix it by pressing the button several times. It’ll remove all the accumulated dirt around the pressure relief valve, and the issue will be fixed. If this fails, this might be happening due to the dried o-ring and the loose Phillips screw from the filter housing.

To fix the leaking from the pressure relief red button, follow these steps.
1. Remove the Filter Housing
Removing the filter housing is a bit tricky. While you remove the housing, be careful to avoid any damage with housing and water pressure splashing.
Here is how you can remove the filter housing.
- Turn off the valve entering the filter housing
- Let the valve on, leaving the filter housing
- Open the faucet to release all the water pressure, or flush the toilet once.
- Now turn off the valve, leaving the filter housing
- Take a filter housing wrench and fix it into the grooves
- Rotate the wrench clockwise carefully
- Rotate housing several times
- Place a bucket below the housing for safety.
2. Grease the O-ring and Tight the Phillips Screw
Once you’re done with the filter housing, check the Phillips screw if it isn’t tight. The water leaking from the pressure relief button could happen due to the loose screw and dried or torn O-ring holding the button. To fix this
- Take a screwdriver
- Remove the Phillips screw
- Grease the o-ring with a silicon grease
- Fix it back and carefully tighten enough the Phillips screw.
3. Reconnect the Filter Housing
Once you’re done with the pressure relief button fix, reconnect the filter housing. To do this, be conscious of the o-ring and filter placement into the canister. To reconnect it
- Place the filter into the housing canister.
- Ensure the filter seals are in the proper position with respect to the housing.
- Place the O-ring ring housing groove carefully
- Grease it with silicon grease to avoid any tearing
- Place the housing into the cap and rotate anti-clockwise with the hand
- Take a housing wrench and tight it enough to avoid any leak
Note:
Tools Required to Fix the Leaking From Pressure Relief Button:
Here are some tools that you might want to pick to troubleshoot the pressure relief leaking.
Here is a list of tools:
Tools | Details |
---|---|
Water filter housing wrench | Available in different sizes |
Silicone grease for o rings | Available in different price ranges |
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Conclusion:
In this blog post, we’ve discussed why the pressure relief button might cause the water leak. Additionally, we’ve discussed how to fix the leaking from the pressure relief button.
If you are not tech-savvy or uncomfortable with any plumbing process. In that case, it’s best to seek professional assistance to fix the leaking issue with the pressure relief button. However, we advise you to contact the technical support of the manufacturer.