Quote Originally Posted by T_Sauer View Post
Why???? .... I have several rack systems that do not require holes in the tubs .... It all depends on how the rack is built ... It is up to the handler to monitor the humidity and find out how many, if any, holes are required to reach your desired humidity ... Size of gap where the tub meets at the top, size of heat tape, and room the rack is in all come into factor for this .... Sometimes holes simply are not required
I think, and I'm not trying to speak for someone else, it was because the tubs all have lids on them. I noticed the same thing but figured she may have done the same thing I do and that's to put the holes running along the side of the tubs, not the front facing portion of the tub. I like it this way as it looks cleaner to me not seeing the holes.