Dear Alice, I have a question about sex in swimming pools and hot tubs. Water containing chemicals, salt, or bacteria can be forced into the vagina or rectum during sex, possibly causing irritation, infection, or temporary dryness. Since it's recommended to store latex condoms away from direct sunlight, it's possible that heated water may have a similar effect on latex.
Water can seep between the condom and the penis, possibly causing the condom to slip off.
Of course, using a condom in a pool or hot tub is better than not using one at all.