ComStar Leak Bubbles Yellow HVAC & Gas Detector, Fastest-Acting Leak Detector in Today's Market - Safe, Non-Corrosive, Long-Lasting Bubbles, Detects Micro Leaks, Made in USA, 1 Quart Spray (90-204)

This product works so well the plumber got a product referral from me.

Sure, soapy water will detect leaks, but let me tell you, this product will find leaks that soapy water will miss.I had the opportunity to use this on my tire valves, and I discovered a minuscule air leak that didn't show up at all using soapy water. This product is fantastic; it detects virtually any kind of leak, and does so extremely well.Had I used soapy water instead of this product, I would never have known that one of my tires was slowly leaking air. The leak was so small that it required that I use a magnifying glass to see the escaping bubbles. With that said, although the leak was about as tiny as you could possibly get, it would have resulted in one of my tires losing a substantial amount of air over time.This stuff isn't cheap, but it is most certainly effective. Simply spray the area in question, and look for bubbles to form. You can either use the spray or stream mode. When I used the spray mode, I didn't see the tiny bubbles escaping from my tire. When I used the stream mode and a magnifying glass, the leaky bubbles became apparent.I consider this money well spent. It's a step up from using soapy dish water, and the convenient spray bottle will last a very long time.

THIS SOLUTION DOESN'T MAKE BUBBLES AHEAD OF CHECKING YOUR GAS FITTINGS. WATER&SOAP SOLUTION YOU MIX UP MAKES BUBBLES BEFORE YOU SPRAY. (BAD)

Leak detector seems to work well. When it is very hot outside, you have to keep adding more because it evaporates. Still I am happy with the product.

I highly recommend this product, it is the bees knees on finding leaks