My home was built in 2003, 2400sq ft., in pacific NW. We are not on a well. We are on city water line. When we turn on the hot water for the jetted tub we get bursts of blackish â€œinkâ€ like water from the faucet. As i run the hot wide open it comes and goes. It leaves a black slightly oily residue. The tub is at the opposite end of the house from the hot water heater. The piping under the tub looks like combination braided copper and straight copper pipe. I donâ€™t see any mold.
Plumbers cannot tell me what the problem is. Iâ€™m worried. Please tell me who to talk to.