Its not glue it appears to be where the drip has been seeping for quite some time and left a brown slime. The male fitting compresses into the female but I can't get it to release, that is why I thought a tool like the sharks use for home plumbing, you compress push the tool into the female and voila it disassembles. They also compress when squeezed just like sharks. I cant find a manufacturer on the valves or in the manual. if I knew who made them it would be off to the races. I have been chasing a fresh water leak and this is a slight drip when static.