NSP offers a sustainable solution for chemical free swimming in every environment from the frozen lakes of Minnesota to the sunny Arizona desert. Families who suffer from harsh chemicals and high monthly pool maintenance bills can now choose an organic pool filtration option that naturally purifies water. NSP can design and build a custom, luxurious natural swimming pool OR convert your existing pool for significantly less cost. Homeowners who are undecided about converting to NSP's can start with our reduced-chemical Reverse Osmosis Pool Plan (ROPP) that will greatly reduce your monthly maintenance costs by up to 75%. ROPPs begin at only $25 per month!