The supplie line to my toilet is not running. I cleared as much water out of the line as I could and poured CLR into the line. This worked for a few days but then the water stopped flowing again,so I repeated the procedure and again this worked for about 24 hours. I repeated the procedure again but the line won't open. Is there anything that I can use besides CLR to disolve a mineral deposit that would work better or am I screwed?