Using Barnacle Buster for your boat air conditioner

If you've noticed your boat's cooling system struggling lately, using a barnacle buster air conditioner flush might be exactly what the doctor ordered. It's one of those maintenance tasks that sounds a bit intimidating the first time you hear about it, but once you realize how much money it saves you in technician fees, it quickly becomes a staple in your DIY arsenal. There is nothing worse than sitting in a humid cabin in the middle of July, listening to your AC compressor hum for three seconds before it trips out on a "high pressure" error. Usually, that's just the boat's way of telling you that its "arteries" are clogged with sea life. ...

February 25, 2026 · 7 min · Nata Puig