I have a b1700 with loader. On the valve block where what appears to be the first fitting is screwed into the block there is a minor leak. Does not spray when under load but drips. I tried to take that fitting out and put some teflon tape on it but it didn't want to come out. Is that first fitting set in the block with something other than threads, is it molded or welded in place? Is this something I should even worry about or just leave it alone as it is not a major leak. Thanks for your help.