A natural pool may cost more than a standard pool when it comes to initial investment, but will be much easier and cheaper to maintain in the long run. Natural swimming ponds usually only cost about 15% more than a traditional pool to design and install. However, Americans spend anywhere between $500 and several thousand dollars a year on repairs and maintanence of a standard chemical pool.
A natural pool will save you in time, money, and energy when it comes to maintanence. Rather than requiring frequent water testing and chemical adjustments, a natural pool filters and maintains itself.