How to describe this situation in English?
While I was taking a shower, the water was hot at first, then it turned cold, then it was hot again, then cold, and went on like this.
Which of the following sentences is better? Or any other expressions?
"The water wasn't working well. It was hot, then cold, then hot, then cold, and went on like this."
"The water wasn't functioning well. It was hot, the cold, then hot, then cold, and went on like this."
"The temperature of the water wasn't stable. It was hot, then cold, then hot, then cold, and went on like this."