You've decided to take a break from mowing the backyard and find yourself inexplicably drawn to the cool, blue water of your swimming pool. Before you throw off your sneakers and dive in, cutoff jean shorts and all, take a moment to reconsider. There's a reason you normally change into swimwear before jumping into the drink.
Jean shorts, cotton T-shirts – in fact, any type of regular clothing not made specifically for swimming – can pose a hazard to your pool. These clothes, underwear and all, can introduce contaminants to the water. On the flip side, these same clothes will absorb chemicals in the water, upsetting the chemical balance in the pool. Plus, garments not made for water-wear become heavy when wet, making it harder to keep your head above water [source: WTOP].