Natural Swimming Pools

[Caperguy99]

My wife recently came across the idea of a natural swimming pool and thought it’d be a good way to combine my desire for a koi pond with her wish for a pool.

Anyone have experience with these? Do they work as advertised? Or do they get gunky when you start adding livestock?

 

[Milingu]

They can work as advertised if you either make them very large with plant filtration and only a small amount of koi or you add decent filtration. If you use filtration make sure to only use low voltage pumps otherwise it can be pretty dangerous if you get a short circuit while somebody is swimming in the pool.