Natural swimming pool, swim pond, natural pool, pond pool: all the same thing
"Natural swimming pool" (NSP) is the industry's technical term for a chemical-free, biologically filtered pond you swim in, so natural swimming pool, swim pond, natural pool, pond pool and swimming pond all describe one thing. Water kept clear by a planted regeneration zone and the bacteria living in its gravel instead of by chlorine. No chlorine, no liner-and-tile shell, and water that looks like a clear lake rather than a blue rectangle. What we build: natural swim ponds and natural pools, recreational ponds at acre scale for swimming, fishing and wildlife, and conversions that turn an existing chlorine pool into a pond. What we do not build: chlorine, saltwater or mineral-system pools, and no gunite, concrete-shell or fiberglass pools. If a conventional pool is what you want, we are not the right builder for you.
Overview
Biological filtration is what makes a natural swimming pool a pond. A planted regeneration zone, beneficial bacteria and the right gravel substrate completely replace chlorine. This is how it works and why it holds clear water. Every pond we build runs on this system. We do not build chemically sanitised pools.
Regeneration Zone Sizing
The regeneration zone must be roughly 50% of total water surface area to handle bather loads up to one swimmer per 5 m² of swim zone. Undersized regeneration zones are the #1 reason DIY natural pools fail. Swim zone depth: 4-8 ft, vertical or steep walls Regeneration zone depth: 12-24 in, gentle slope, gravel substrate Flow rate: total volume turnover every 4-8 hours Plant density: 6-10 plants per m² across emergent, submerged, and floating categories
