I bought the GE Water Dispense Hot/Cold Model Number GXCF05D about 2 years ago. Recently the water has started tasting a little bad so I've unplugged it, taken the bottle off & I want to clean it. Several years ago, my ex husband & I bought a water cooler & we were drinking the water like nothing until one day a piece of green mold fell into my cup. I took the nozzles off & they were caked with the mold. I want to make sure this one isn't doing the same thing.