If you can recall back to a time when you had to work for a living, I doubt those Marine mechanics were mixing up chemicals so why are you trying to fix stuff on your boat?? Bring it over to Tolchester Marina, they'll get you all fixed up and it may only take them 2 1/2 hours at $95/hr.
. Margaret says would be a lot cheaper, but since you started to fix it yourself , there's the idiot surcharge.