no leaks when horizontal.
The only way I can see them leaking is just like any other tank i've tried, (including my husband made tanks).........is if you toss your PV in your purse or whatever & the top piece of aluminum or bottom piece slides out. The aluminum is tight, just not tight enough to throw in your purse & go on your merry way.
BTW, the new Nhaler tanks leak when VERTICAL on day 1 (not a good thing, for $30)!!!!!!!
The only way I can see them leaking is just like any other tank i've tried, (including my husband made tanks).........is if you toss your PV in your purse or whatever & the top piece of aluminum or bottom piece slides out. The aluminum is tight, just not tight enough to throw in your purse & go on your merry way.
BTW, the new Nhaler tanks leak when VERTICAL on day 1 (not a good thing, for $30)!!!!!!!