The Natural Swimming Pool; or Natural Swimming Pond (NSP) originated in Austria & Germany over 30 years ago. Today, there are more than 30,000 Natural Swimming Pools across Europe; including large, public swim facilities.

The Natural Swimming Pool is based on limnology; a scientific system that allows plant and microorganisms to naturally filter the swimming water; which make it free of chlorine and other harmful chemicals.

Jesse Dutra and his Waterscapes team have been on the cutting edge of sustainable and socially responsible land care and have been traveling to Europe to study the Natural Swimming Pool. They are excited to bring this technology back to United States for their clientele in Southeastern Massachusetts, Cape Cod, Nantucket, and Martha’s Vineyard.

By offering the Natural Swimming Pool to homeowners, it allows for a healthier and rejuvenating alternative to the conventional, sterile swimming pool.  With our horticulturalists, water gardeners and land care professionals, we can help create a beautiful and sustainable waterscape for your family and friends to enjoy.

Please contact us for your interest in a Natural Swimming Pool, as it is our passion and visit our new Natural Swimming Pool website www. for more information



Just off Harvard Square this beautifully designed natural swimming pool with an emerald glass tiled water feature.


This New England field stone  natural pool with spa is the first
Bionova Natural Swimmng Pool in the United States.


This beautiful Natural Pool was designed with all native plant material.

Both in the pool and the surrounding landscape. Creating a natural ecosystem.



How is the water in a Natural Swimming Pool treated?

The water is treated biologically. There are no chemicals used, nor are there any devices used that would disinfect or sterilize the water. The movement of the water through the biological filter, the action of the aerobic and anaerobic bacteria in the filter and regeneration zone, as well as the plants feeding hydroponically on the water is how the water is cleaned. This is pure Mother Nature cleaning and clarifying water. We are simply building an environment that allows her to do what is natural – and – enhancing that environment with design techniques and energy-efficient technology.

How big does the regeneration zone need to be?

There are technically 5 different “types” of NSPs and they differ depending on the exact design of the swimming zone and the regeneration zone, however a good rule of thumb is that the regeneration zone should be approximately equal in size to the swimming zone.

Can I heat the pool?

Yes – how much you can heat it, depends on your climate and on the time of the year. BioNova® Natural Pools tend to be warmer than traditional pools, because the regeneration zone is relatively shallow and acts as a passive solar collector. Ask your BioNova® Dealer Partner for details on heating in your area.

What about mosquitoes?

Because a BioNova® Natural Pools’ water is in motion, mosquitoes are not a problem as they do not breed in moving water.

Do these pools cost more than traditional pools?

In general yes. Because these pools are larger they will tend to cost more, typically starting out in the high five figure range. Additionally, natural pools need to have the aquatic plants acquired and installed, however on-going operational costs are lower over the years as no chemicals are needed and energy consumption is much lower than for a chemical pool. Finally, it should be considered that the NSP is a swimming pool AND a water garden.

Can we have fish in the pool?

No, although fish would love to live there. Fish put an undesirable biological load on the system and are not permitted in order to meet BioNova® standards.
Yes, algae is a natural plant and an NSP will always have some algae in it. Algae is not harmful, it is simply a single cell plant and a small amount of algae in the regeneration zone of the system is actually necessary. We control algae by using the correct aquatic plants for the climate to insure that these plants out compete with the algae for the available nutrients in the pool water. Algae is typically relegated to the regeneration zone and is vacuumed out of the swimming zone with a pool vacuum or automatic pool cleaning system.

What kind of maintenance is required?

Some maintenance is the same as for a traditional, chemical pool. We need to periodically empty and clean skimmer baskets, empty and clean pump baskets, vacuum the pool and clean the filter. Water garden maintenance is also necessary – removing unwanted plants, trimming and maintaining existing plants and cutting them back at the end of the season
We have freezing weather in the winter, what about winterization?
In cold climates, the NSP needs to be treated just like any other pool, i.e., the plumbing lines need to be winterized, and the pump and filter drained. The swimming zone can be covered with a winter cover and the regeneration can be covered with a BioNova mesh to prevent leaves and other debris from entering the area.

What is the minimum size for an NSP?

We do not recommend NSP’s smaller than 535 square feet in total. Please contact us directly for details on correctly sizing a NSP.




508 228 9310


PO Box 2578  Nantucket, MA 02584