A weeping compression joint is a common issue when pipes start leaking. It happens when the joint connecting pipes lets water escape. This can be due to wear and tear, incorrect installation, or damage to the pipe or olive.
Can a Weeping Compression Joint Fix Itself?
No, a weeping compression joint won’t fix itself. In that case, you might need to reassemble the compression fitting, change the olive, or use epoxy putty for a temporary fix.
Take the necessary steps when you notice a weeping compression joint.
The causes of a weeping compression joint
A weeping compression joint occurs when a small amount of water leaks from a compression fitting, typically found in plumbing systems. Here are some common causes:
Poorly fitted joint
A poorly tightened compression nut can cause the joint to weep. When the joint is not properly seated, water pressure can push past the sealing components, resulting in a slow leak.
Damaged components
The integrity of a compression joint relies on the condition of its parts, such as the pipe, olive (brass ring), and compression nut. The sealing ability of the joint may be compromised by scratches, dents, or cracks. In some cases, debris or grit trapped between the sealing surfaces can also cause a weeping joint.
Incompatible sizes
Another common cause is the mismatch of pipe, olive, and fitting sizes. Using an incorrect-sized olive or fitting can lead to an incomplete or weak seal, allowing water to escape.
Over-tightening
While tightness is crucial, over-tightening a compression joint can cause deformation or damage to the sealing components, which may lead to leaks.
The risks of leaving a weeping compression joint unfixed
A weeping compression joint might not appear to be a significant problem, leaving a weeping compression joint unfixed can lead to several risks.
Structural damage
Continuous exposure to water can weaken the surrounding materials, such as wooden floorboards, drywall, or cabinetry. As time goes on, if this moisture hangs around, it might cause decay, mold growth, and could even affect the building. Addressing the leak early can prevent costly repairs in the future.
Water waste
While a weeping compression joint may only leak small amounts of water, the cumulative waste over time can be significant.
Increased risk of more severe leaks
Ignoring a weeping compression joint may lead to the problem worsening over time. The constant water flow through the connection can make the seal wear out faster, causing a bigger leak in the long run. This could lead to more serious consequences than just a small drip from the joint at first.
Will a Weeping Compression Joint Seal Itself if I Reuse Compression Fittings?
Yes, reusing compression fittings risks compromising the integrity of the joint, potentially leading to leaks. A weeping compression joint may not seal itself if the fittings are reused, as the compression ring may not create a proper seal the second time around.
How to fix a weeping compression joint
A weeping compression joint can be an annoying issue to deal with, but with the right tools and techniques, you can stop the leakage and ensure a proper seal. In this section, we will discuss the necessary steps to fix a weeping compression joint.
1. Shut off the water supply
Before working on the compression joint, it’s crucial to shut off the water supply to prevent further leakage and damage.
2. Disassemble the joint
Gently loosen the compression nut by turning it counterclockwise using an adjustable wrench. Slide the nut away from the joint, followed by the olive (a small brass ring) to expose the pipe end.
3. Inspect the pipe and olive
Examine the pipe end and the olive for any damage or irregularities. If the pipe end is scored or damaged, you may need to trim it using a pipe cutter before reassembling the joint. If the olive appears damaged or overly compressed, consider replacing it with a new one.
4. Clean and apply sealant
Wipe the pipe end clean and apply a suitable joint sealant, such as LS-X, to ensure a watertight connection. While some plumbers prefer not to use sealant, it may provide an added layer of protection against weeping joints.
5. Reassemble the joint
Slide the new or previously used olive back onto the pipe end, followed by the compression nut. Position the joint correctly and tighten the compression nut by hand, ensuring the nut and olive are evenly seated.
6. Tighten the nut
Using an adjustable wrench, tighten the compression nut further in a clockwise direction. Avoid overtightening the nut, which may cause damage to the joint or continued leakage.
7. Check for leaks
After reassembling the joint, turn the water supply back on and inspect the joint for any signs of weeping or leakage. If the joint continues to weep, you may need to further adjust the compression nut or replace the joint entirely.
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