[Racefan]

Yeah the one draw back from the herbalaire is the bags leaking. One member on here tried to convince me that was a safety feature to prevent explosion from over filling but mine leaked when only 1/8th of the way full and no pressure. I bought 4 boxes of volcano bag material of ebay for less than 20 bucks. Each box has 9.8 feet of bag material and a strip that you use to tie the end up and to secure the mouthpiece in place. I cut the zip tie off the old bag and removed the mouth piece. I then cut a length of bag material about 1.5 feet long. I tied up one end closed and gathered the other end around the mouth piece and secured it with a new zip tie and then double sealed it with another length of the plastic strip. I cut off all extra bag material and tested. No more leaks and a better sized bag. The box of bag material has instructions on how to make new bags for the volcano and anyone with a little imagination can figure out how to adapt them to the herbalaire mouth piece.
This is what I recommend anyone with a herbalaire should do.
Another option was that I have a vapir and their bags are super sealed and wouldn't leak so I made adpters to allow the herbalaire to fill them. They are just small and I require filling them twice or using two bags.

PS. Once you fill a bag you have less than a hour to use it or it will not be good anymore. Of course the denser the vapor the longer it will stick around but I still say you have a hour or less to use it once filled. Try to see how long one lasts right now to judge holding times for yourself.