My Toddler Drinks Pool Water

Is it harmful? Here are my favorite words of wisdom from the web:

• I wouldn't worry too much about it. It's not perfectly clean, but it's not completely toxic either.
• I think it pretty much depends upon the temperature of the water. If the water temperature of the water he/she is drinking is noticably warmer, say in an area roughly 3 to four feet in diameter, I would suggest the water should be viewed as not very safe. The way sales of bottled water are going, where people are buying water because their tap water might have a one part per milligillionth of latent bacteria, I'm thinking pool water, while not being deadly could cause a tummy ache or a lot of people are wasting money on filters and bottles.