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BradC · 01-30-13, 06:25 PM

I've used Randen's method before (do it outside!).

When I was looking for a very hard to find leak on my system, I ended up trawling the bubble blowing forums for the best bubble mixture. Plain old soapy water was not tenacious enough to find the leak (I could pull a 500 micron vac and gain 1000 microns overnight).

I ended up with a mix of dish washing liquid, water and glycerine. The trick turned out to be lots and lots of dish washing liquid. Like a 50/50 mix of soap/water. I just added a tiny splash of glycerine to that and put it into a squirt bottle.

01-30-13, 06:25 PM	#45
BradC Apprentice EcoRenovator Join Date: Dec 2010 Location: Western Australia Posts: 148 Thanks: 1 Thanked 48 Times in 34 Posts	I've used Randen's method before (do it outside!). When I was looking for a very hard to find leak on my system, I ended up trawling the bubble blowing forums for the best bubble mixture. Plain old soapy water was not tenacious enough to find the leak (I could pull a 500 micron vac and gain 1000 microns overnight). I ended up with a mix of dish washing liquid, water and glycerine. The trick turned out to be lots and lots of dish washing liquid. Like a 50/50 mix of soap/water. I just added a tiny splash of glycerine to that and put it into a squirt bottle.