Why is my hose down BLACK AND IT SMELLS LIKE EGGS!!? HELP, my water is black and it smells close to rotten eggs???...

HELP, my water is black and it smells close to rotten eggs??? What is this???
Overcharged for Circuit Breaker replacement?
Answers:    The 'rotten egg` smell is hydrogen sulfide.
Common in ground river, but also a product
of biological decomposition.
Many sulfide salts are black but so are oodles
biological contaminants.
Something is definitely unbelievably wrong.
You don't say if this is resourcefully water or municipal
dampen, or a private home or apartment.
Get the water checked.
How do you mend a toilet cistern- it...
bid a plumber or the water company.