It took me a while to accurately diagnose this, but the water coming out of my hot water heater smells strongly of sulphur. I have no idea exactly when this started; the rig was stored for more than ...
Same thing happened to us. Draining the water heater didn't solve it for us though. Had to mix up vinegar and water and let that sit in the water heater tank for a couple hours to get rid of the smell. We didn't drain our water heater while we took a longer break from camping. The bacteria in the water eventually made a putrid smell that we just couldn't get rid of.
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