kglazier
Chirping
gold fish from a pet shop (not a koi) are are breed and selective to live in almost any condition. Fish can also bio accumulate heavy metals without being effected. the fish is great for 'skeet control but not a good indicator of toxic conditions.
if u bleach it that will kill most pathogens. let the water sit a few days and the free chlorine will dissipate. test kits for chlorine & pH are available from most pet shops. or you can get more accurate test kits online from hach (Google it)but still does mean the water is safe to drink. rain water tends to have a pH on the acid side. It can dissolve a lot of stuff.
if u bleach it that will kill most pathogens. let the water sit a few days and the free chlorine will dissipate. test kits for chlorine & pH are available from most pet shops. or you can get more accurate test kits online from hach (Google it)but still does mean the water is safe to drink. rain water tends to have a pH on the acid side. It can dissolve a lot of stuff.
I think unless your shingles are brand new there is very little concern.... except for the little bits of sand that are always being shed by shingles... for the most part I suspect they are benign. Easy to filter out and many many ways to do that.
I think the litmus test is that gold fish. Fat and healthy is a very good sign. I have a big tank of water for my horse that is fed by a trickle of water that comes through a float valve. I keep three or four gold fish in there for the same reason. I know Carp in general are a dirtier fish than others but they handle a very wide swing of water temps and salinity... If the water is deep enough they will over winter in an environment that would freeze the water a good six inches deep. I was told by an aquarium keeper that green algae is also a good sign of a healthy environment, So having fish in there to graze the Algae and any insects that take up residence is a very good idea.
IF you see Blue algae.... You will know the difference its less velvety and harder to scrape off stuff like rocks and tub walls. That is not a good sign. Blue Algae... Um er... Blue green.... Is not Algae at all but a cyanobacteria.... Some of it is poisonous.... Some of it like Spirulina Are actually good for us... Knowing the difference.... better safe than sorry in the home enviironment.
I would love to hear more about water treatment for water that comes off the roof. My years of working with aquariums tell me it would be a simple process of good filtration to make the water off the roof drink able.... for anyone.
Does your well water have an odor? Mine does and I drink it to no ill effect.... I am told its due to bacteria that take up residence in the pipes and their by product is a gas that smells like rotten eggs. my research tells me I need to bleach the well.... Havent done that yet.
deb