I have burned through two 5 lb tanks and both kegs have beer. I was kind of in a rush setting my kegs for the 4th so when the first one blew in a couple weeks I thought I just didn’t do a good job. I connected a second keg and it just blew again. When I set up the second tank I checked for leaks with star San looking for bubbles. When the tank blew both kegs had no air. So my first thought is the kegs didn’t seal. It’s odd that neither kegs help pressure though. my set up is a 5 lb tank and regular that goes to a splitter that has two valves and hoses so I can use one tank for two kegs. My standard process is to use starsan and check the kegs and any connections. any advice or tips on where the leak may be or how to find it better than my process now?
Method 1. Start at the regulator. Turn off everything in the chain wherever possible. Disconnect the keg, turn off the valve at the regulator. Then start to turn stuff back on, working towards the keg. Work forwards until you discover your leak. Method 2. Change kegs. Leaks? No leaks it's your keg. Method 3. Crank the pressure up to around 50 psi. Turn off every noise in your life. Close your eyes and listen hard. Turn your head side to side to localize the leak. Ask someone with good hearing (you got kids?) to do the same. Tell the kid they can have a pint if they can figure it out. 50 psi helps produce bubbles too. Method 4. Worm clamps do wear out. Replace them. Use Oetikers if you can. Good luck.
I can only add two things to what bill said: 1. when you find your leak, don't stop looking for a potential second leak, and 2. hang around Home Bar Forum . . . the people over there seem to be a little smarter.
Do you use hose clamps? Further interventions, once a leak is found or not, may include cutting the ends off your tubings so you can tighten hose clamps on a fresh tube end. Tighten those babies good! You can even pour a bit of hot water on the connections and then tighten further. Make sure your clamps (or whatever you have) are of good integrity. Might be your poppits and their seals, or the lid itself. Once the beer is out of the keg, you can pour in HOT water. Place the lid on the keg. Shake it and release the pressure with the PRV. As the water cools, negative pressure will form. Turn the keg upside down. Put your ear to the keg (obviously it may be hot). If you can hear little bubbles getting sucked into the keg, you may hear them. That might help rule out the keg lid or poppits. Since it was two different kegs it might be upstream.
