Quote Originally Posted by TareqPhoto View Post
The question is, should i use a stainless steel reel in a steel tank and plastic reel with plastic tank? or doesn't matter?
It matters. Plastic tanks have a central column, which is a tube, through which you pour the chemicals. You can't omit it, because it also makes the tank light tight. The inner circle of the plastic reels fits nicely on the tube, but a metal reel probably won't. Tanks and reels are not always interchangeable.