BRODYS Drain Gun - AC Drain Line Cleaner Device, with a flexible hose to Clear all HVAC Clogs, (Comes with 6 Unthreaded CO2 Cartridges, AC Cleaner Blaster Opener Kit

​I was facing the dreaded summer nightmare: our AC unit shut off automatically, and I discovered a puddle of water around the indoor air handler. The culprit? A clogged condensation drain line, which had tripped the float switch. ​For years, I've battled this issue with a wet/dry vac, bleach, and long flexible brushes, with mixed and temporary results. This time, the clog was stubborn. After an hour of frustration and with the temperature rising in the house, I was about to make the expensive call to an HVAC technician. ​On a whim, I did a quick search and found this CO2 unclogging tool. I was skeptical, to be honest. Could a small CO2 cartridge really do what my powerful shop vac couldn't? The answer is a resounding YES. ​Ease of Use: This tool is brilliantly simple. The instructions were crystal clear, and it took less than 60 seconds to screw in the CO2 cartridge and attach the nozzle to my drain line's cleanout port. ​The Magic Moment: I held the tool firmly against the pipe, took a deep breath, and pulled the trigger. The "WHOOSH" was powerful and immediate. I ran outside to the end of the drain line, and what I saw was both disgusting and beautiful: a sudden, forceful gush of water and a year's worth of built-up algae gunk blasted right out of the pipe. The clog was completely obliterated in a single shot. ​The Result: I went back inside, poured some water down the cleanout port to test it, and it flowed freely for the first time in ages. The AC kicked back on and has been running perfectly ever since. The entire process, from opening the box to a fixed AC, took less than five minutes. ​Final Verdict: This tool is worth every single penny and then some. It's a fraction of the cost of a single HVAC service call and infinitely more effective than any other DIY method I've tried. This is now a permanent, essential part of my home maintenance toolkit. If you have central air conditioning, do not hesitate. Buy one of these before you need it. It will save you time, money, and a whole lot of stress. An absolute must-have for any homeowner!

Worked very well. Would recommend this product highly

My husband used it and said it worked great. Well spent money! Saved us hundreds of dollars.

Doesn't work. Plunge does not seal on the drain openning

It worked for me on the last cartridge fortunately. I tried to get a decent seal by plugging other openings in the line and used 5 of the cartridges but the air always had some way to escape. I had to cut the drain line so I could get a tight seal and a direct shot at the blockage but that finally worked and my AC is back in operation. My one complaint is that they don't tell you what size cartridges come with the gun (16 gram or 20 gram) and I don't see how to reorder cartridges.