Originally Posted by camaertens
I had the exact same problem with my 1999. The water system hadn't been used in years.
1. Would a good cleaning fix the problem?
Probably, but I ended up having to replace the pump because mine leaked. Not a major problem, not expensive.
2. Does anyone think the system should be replaced? If so, are there any recommendations for removing hoses/tanks?
Many folks do replace their water lines, again, not a major renovation, but I didn't bother. As long as there are no leaks, you can make it usable with a good cleaning.
3. Should I be concerned about mold in the faucet itself?
As mentioned in the post above, pumping a mild bleach solution through the system should take care of the pump as well.
4. Does the tank need to be replaced?
No, not if it's not leaking.
Thank you all for your help. We are new to this, but look forward to learning.
To clean, make sure your drain valve is closed, add one cup of fresh, unscented chlorine bleach (old bleach looses a lot of it's potency) to a one gallon pitcher. Fill the pitcher with clean water, then pour into your fill tube. Continue filling the tank with a hose. Once it is filled, pump some of the bleach water through the lines to the sink.
Leave it sit for a day or two. Helps to take the trailer out for a short drive, this will slosh the bleach water around in the tank, cleaning the top surface. Periodically pump some fresh bleach water through the lines and out the sink. All that black mold will eventually let loose, and come out through the sink pump - gross! Once you start getting clear water, leave it sit for a few more hours, then you can drain the tank, fill again with fresh water (no bleach) to rinse the system. Make sure to pump some of this fresh water through the line and sink pump as well.
While the lines may not look pristine, they are sanitary and usable. This entire procedure should be repeated annually to keep the system clean. I normally only use the tank water for washing dishes and hands, but on occasion will drink it with no ill effects.