​The International Organization for natural Bathing waters (IOB), which is the Bremen, Germany based association for natural swimming pools, has elected a new 5 member Board of Directors to replace the outgoing Board and installed a former Board Member, Stefan Meier of Spain, as the new President of the Organization.
The new Board and President is pictured below and consists of L-R; Michael Messner (Germany), Dirk Esser (France), Dirc Walter (Germany), James Robyn (USA), Incoming President Stefan Meier (Spain) and Jan Sarosiek (Poland).
The election was at the 9th International Congress for Natural Bathing Water held in Leeuwarden, Holland during the Congress's 2 day Symposium and trade show. 



The Association for Swimming Ponds and Natural Swimming Pools -  ASPNSP - is incorporated as a non-profit association to protect human health and safety in swimming ponds and natural swimming pools (collectively called NSPs).

ASPNSP is the industry resource for education, for homeowners to exchange ideas and to gain information, and for the education and certification of designers and builders.

The ASPNSP fosters regulatory compliance in the design, permitting and constructing of NSPs and provides a conduit for public communication and advocacy.

​​My wife and I are very excited to be installing a bio filter pool.  I strongly encourage homeowners to look into this type of pool,  as you will be creating a beautiful, low maintenance, chemical free body of water,  keeping the water pure and sensual- besides being kind to your health and your local environment.

​Phil Lesh - Bass Guitar, The Grateful Dead


The ASPNSP has been accepted as of September, 2016 as the official USA Member of the International Organization for natural Bathing water (IOB) which is based out of Bremen, Germany. The IOB is the world's umbrella organization of swimming pond and natural swimming pool experts with 12 countries' natural swimming pool organizations united to form the international federation.

ASPNSP's alliance with the IOB is an important and beneficial result of your membership in the ASPNSP and will pay dividends by increasing your knowledge of NSP design, construction and maintenance principles.

Connect with other professionals and network with people interested in and working on swimming ponds and natural swimming pools.

Our Inaugural Membership Drive has now started.

We have 4 categories of membership:

​Professional, Associate, Student and Commercial.

Professional - A Professional Member is a person actively involved in the NSP industry as a designer, builder, maintenance professional or consultant. A Professional Membership is the only category of membership that carries full voting rights in the organization. Please click here to become a member. 

Associate - An Associate Member is a person or organization with an interest in NSPs such as a landscape architect, homeowner, health department, educator or advocacy organization. Please click here to become a member.

Student - A Student Member must provide proof of student status and is eligible to have postings on a Job Board. Please click here to become a member.

Commercial - A Commercial Member is a commercial or public entity (e.g., regulatory), product manufacturer, distributor, service provider or trade group. Please click here to become a member.