Radon causes lung cancer…especially if your smoke. Removing radon from water is a water chemistry problem, removing radon from air is not a water chemistry problem. The two are very different. Water radon systems either bubble the water (aeration) or collect radon to carbon (adsorption). When you bubble the water, you change the composition of other contaminations in the water. When you adsorb radon gas you also effect water chemistry. On either, created or other water chemistry problems can and will have a substantial effect on how efficient the radon system operates over time…and your overall water quality.. Then there is gpm rates, water pressure, plumbing and service schedule issues to consider. You need to know and understand the by-products of how solving water radon effects your water quality, your water treatment system, if you have one, and the very radon filtration system itself. Virtually all “air radon specialists” have little skill in water chemistry and filtration and most will assure you that because they do air, they can do water also. This is why you need a water professional to properly solve radon gas in water…and this is why we do not do air radon…its not our field of expertise.