Swimming in the Spa

When we purchased our home, we discovered it came with a spa! Absolutely wonderful to use in the winter....BUT kind of useless in the summer. When it's 90% humidity outside the last thing I want to do is get into a 104 degree spa. Andy and I had a awesome idea to drain the spa, clean it and fill it up with fresh water, turn off the heater and let the boys use it as a swimming pool... WE ARE BRILLIANT!!  The boys love using the spa as "their" swimming pool!