I have heard of this myself, but can't remember where. Either this thread or one of the others that's out there. Might be a good idea to check into also.
I have not read through all 164 pages, so don't know if this has been brought up before or not. I found a thread somewhere a couple of weeks ago on the forum about another tank/carto mod that looked interesting. It's made from a 6ml juice bottle. I am not very computer savvy so don't know exactly how to put this site address in this reply, but it's on youtube search kennysmancave channel. I made one three days ago and it has worked perfectly, cost me nothing and have had perfect operation with no leaks for 3 straight days. If it has already been and gone in this thread, I apologize, but if not maybe someone who is more able can direct readers to this site. The thing that I liked was that I didn't have to go buy anything. I had several empty bottles and some new CCV Resurrectors, and the saddle valve already, so it was pretty much free for me.