Spk0930

I'm looking for the title of a movie. I watched it as a kid, on TV, sometime in the 90's. It was based on a mom and her two daughters. The youngest daughter was really into swimming. She walked around with a swimming cap on. I want to say the mom drank a lot, but I don't remember that for sure. I believe the mom went out with a guy that her oldest daughter had a crush on. The older daughter leaves one night with her younger sister, to meet a guy. Possibly the same guy. The younger daughter almost drowns in the river while her sister is up in a tower with the guy. I don't believe the little girl dies. That's about all I can remember. Kind of vague, but I hope someone can help! Thanks!

Spk0930