Any time that your water supply is discolored and tinted with a brown, red, yellow, black hue and/or has a foul, metallic tasting smell to it, something is wrong. Since Tankless Water Heater units do not have a reservoir bank for sediment to form in, you shouldn’t have discolored or foul tasting water, so in the event that you do, call Pronto right away! One of our plumbing experts will examine your water heater and water supply to pinpoint the issue and provide repair solutions. It should be noted that water discoloration and foul-tasting water can be caused by many other things in your Harrisburg, York, Lancaster, PA home, but if you notice it in conjunction with any of our other listed signs of a Tankless Water Heater in need of repair, it’s likely due to your water heater.