The Gallo Gun May Not Cut It.......

HVAC Shop Talk is a YouTube channel that celebrates the guys and girls in the skilled Trades - especially HVAC.

Learn more about Bosch HVAC systems through one of their webinars -

Listen to the HVAC Shop Talk audio podcast

Follow our Instagram feeds -

Follow our Facebook Feeds

[kvu]

I live in Texas and most of the A/C drains tie into the ptraps of a bathroom sink. I’ve found the gallo gun very useful on almost every drain clog I’ve encountered. Saved me time and energy vs carrying a whole nitrogen tank. All of the A/C systems are installed in the attic, so it’s very convenient to have esp. if you’re working on a 3+ story town home.

[jasongoertzen]

This is exactly why I've never bought and it never will buy a Gallo gun.
I use a cordless Milwaukee shop vac, water and coil cleaner. I use the shop vac to vacuum the lines as well as hook the hose to the outlet of the vacuum and blow them out at times.
The coil cleaner and a thorough flush is the only way to really get that line clean and prevent it from plugging up right away again.

[TimothyNaugher]

I used mine twice last week. Payed for itself (and more) in one call. It's not the end all be all for clearing a drain, just another tool in the arsenal.

[natehicks]

It’s worth taking your money for little benefit. Pick up a A/c sludge sucker, I have had great results from that device.

[RichGTr]

I have had luck with them, but the lines weren’t that long.. on a long drain line I will vacuum it out.. maybe shoot one in while the vacuum is on. Thanks Zac! Enlightening to say the least 👍

[thatfeeble-mindedboy]

Either when new, or when it’s been completely cleared, feed some nylon paracord or something similar with a knot every couple of feet through it by applying vacuum at the other end with a shop vac or something, but make sure it’s long enough to be pulled a little more than half the entire run in both directions without losing the end. Coil up the excess and secure it somewhere safe… I even attach a note warning whoever not to lose the end. Maybe even attach a big washer to the very end so it doesn’t happen by accident… especially if you have to do this by yourself. Obviously, two people with radios or cell phones is best. At any rate, being able to draw this cord back and forth is going to break up or dislodge just about anything in there, it’s just that pulling a 1/4” dia. clothesline through a 3/8” ID drain line is likely to cause more problems than it solves. There’s always the option of using the pull string to drag in something bigger that is going to be pulled back out once the line is cleared. The bottom line is, whether it’s a tiny drain line for a refrigeration unit, a difficult cable run, or a 5 foot wide, 50 foot long culvert pipe that runs under a road, there’s a time when running a “pull-string” through is a piece of cake. But 5 years from now, when it is discovered that there’s a mass of gook in the middle, or a tree limb is stuck sideways in the middle of the culvert pipe, the sight of a pre-installed pull string is always going to be a welcome sight.

[Rezcat-yr]

Hey Zach. I think like the rest of the folks. A vacuum with one of those attachments that Ted uses. I have a Gallo gun but I just don’t trust it all the time. Thank you for the video. Have a great Wednesday. God bless.

[tc]

Using any device to pressurize a drain line with a clog is like playing Russian Roulette. All it takes is one poorly connected joint to blow apart. Might as well call your insurance rep before you let er rip and let him/her know you are consciously making a poor decision that could result in water damage....

[kangaroogod]

Looks like another customer that could benefit from refrig tech pan and drain spray

[chasesteffey]

You need a cutoff on your drain to keep it from just blowing back in the air handler

[helmsajr]

Never had any luck with them.Waste of time.