I have ordered a Kanger Protank, a X9 Protank, and several EVODS from fasttech. I don't know how to rebuild them and I have purchased a bunch of the heating cores so they will have to do for now. If these suck I might consider purchasing from other recommended suppliers, but I need to hold off on spending for a little while. I've read that the coils are crap and that at they all need to be washed when I first get them. I also have a X8 tank that I will have to replace the heating coil on. I have never owned any tanks before so I have never taken them apart. I don't know if you wash all the parts or just certain pieces. Can someone please give me some directions or a good video link, pretty please? I'm sure it is all simple. I'd love to know how to rebuild them, as well, for future reference. Any videos or links to detailed instructions would be wonderful. Something like Rebuilding Your Atomizer/Tank for Dummies. 