Coolidor testing..

Ok. Let me start off by saying that I googled this first and was not very happy with the responses that I found and I'm looking for your personal experiences and how you went about this.


Obviously, I'm here because my 50ct humidor is now too small and I'm beginning to get very interested in purchasing boxes to smoke/age. I'm interested in moving in the direction of coolidor but I've run into a problem. How are you guys testing to see if your coolidor is air tight? I purchases a small cooler and decided to submerge it in the bathtub to see if water could get into it. I assumed this would be the easiest way of going about it and, sure enough, some water seeped into the cooler. Obviously, this means there's a leak some where.

How are you guys testing your coolers? Is there a cooler that you guys recommend using?