Originally Posted by geezerbob
Hi All: Thanks for the replies. The water filter is next to the water pump and filters water that is drawn from the fresh water tank. It is small about 2 1/2 inches in dia. Inside the small round plastic housing is a metal screen.
That is what was collecting the material. Also the shut off valve was clogged that drains water from the bottom of the fresh water tank. The source of the material and how it got into the fresh water tank is mystery 1. #2 what is it.
#3 how to clean the tank out. I like the idea of getting it analyzed.
Maybe I can figure out how to post a picture of the material on this forum. I'm new to this group. I haven't found a chemical yet to dissolve the sample that I have
Seems to me that the source; in this case is your actual fresh water tank, is the obvious culprit. To my point in a previous post, where and when was the last place you filled the fresh water tank? I would certainly, as others have suggested, empty the tank and clean it out. I would start by trying to simply flush it with fresh city water, do your entire system as well. From there, use normal (sent free) bleach in the tank, add a 1/4 of bottle of bleach and then fill the tank, let it sit for an hour then empty and flush it with fresh city water again. Keep doing this until it the tank is clean and clear. DO NOT USE ANYTHING HARSHER THAN HOUSEHOLD BLEACH IN THE FRESH WATER TANK - regardless of what type of filtration you use from there, you could damage the tank.
Consider also replacing the filters and any hoses that were used to add the suspect water to your fresh water tank.