Leaking pontoons can seem intimidating, but with the right tools and approach, they’re very fixable—even for a diyer If you're unsure about the extent of the damage or don’t have welding experience, don’t hesitate to bring in a pro. This is a quick guide to how we go about locating a leak on a pontoon, fixing it, and testing our fix. Maintaining this pressure for several hours confirms that both the original leak repair and the new drainage hole seal are holding air and that the pontoon is completely sealed before the boat is returned to the water. Learn how to repair pontoon boat issues with our guide How to repair leaky pontoon
To fix a pontoon leak, begin by locating the leak using soapy water to find bubbles around seams For visible and loud leaks, a tig welder can be used for a permanent seal Alternatively, for smaller repairs, a steel putty compound from auto parts stores may suffice. Clean the area of and around the leak thoroughly Sand the area to give the repairing compounds a good surface to stick to It should not be too smooth, but should not have rough edges
Allow the putty to cure, then sand it to smooth.
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