No that would not be colloidal copper. It would most likely be copper sulfate, but could be copper chloride or another copper salt, depending on what acid is in the water.

Marshall

Pat wrote:
When one has acid well water and copper pipes, there is a blue green stain 
where water drips out of the faucet.  Is our water the same as colloidal copper 
when that's happening?  We got a filter which raises the ph.

                                                                                
               Pat







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