Shorty;

Glad you solved your problem. Maybe my 33 years of experience has now begun to pay off? LOL!

Good Fortune to our Good friends, Down-Under;

Ed Valentine

As Ed said, I also have had galvanised type fittings installed on my hoses, and consequently these have started putting out black water.

Changed the ferrules, end of problem.

Cheers,  

Shorty.

ANOTHER THOUGHT (?):

          If there are any galvinized plumbing parts (steel) instead of all 100% stainless steel, it will leave a black residue. I have seen this many times.

Good Fortune to all;

Ed Valentine

cross-american corp.

Are you sure this black substance is coming out of the hose only? Have you let water out of the unit with no hoses attached to see if you have a problem deeper than the hose. If so sounds like someone sold you the wrong hose or you have used products through the hose that is slowly disolving the inside of the hose.

Now that I think about it when we repair a metal reinforced hose we see black guck. Maybe your chemical is reacting to the metal inside your hose. Do you put an acid rinse through your system? Metal does not like acids, even mild acids.

Roy... It sounds to me that your truck is set toooo hot... and you don't let it cool down properly before you shut down for the day...

You should open the heat bypass and turn your temp down and let the truck run for a little while at low idle while you wrap up your hoses and take care of the bill

Roy D: Oh black water keep on chernen

Misssissippi moon won't you keep on burnen.

Roy:  If you are running the chemiclal threw the machine this makes it difficult to stop the deteroration of the inside of your hose.  If you are using chemical feed shut it off just before the end of the last job to flush your lines out.  That may extend your hose life.  I have had hoses blow and blow that black around but never had it come out of the hose first thing in the morning.  It is a wonder your jets are not plugging. I use the blue Goodyear hose it works but nothing great.  What temps are you running your truck at.  It might be a good idea to flush everything out.  I am sure it is not good to have lengths of hose filled with chemical sit for days when not in use. Just some thoughts.