It is important to do research when considering a UV sanitation system because an inadequate system may not perform the job properly or comply with sanitation regulations. For instance, checking the system’s certifications (e.g. energy efficiency ratings, maximum flow rates, etc.) with the manufacturer is a good idea, while referring to NSF International’s website (www.nsf.org) for its list of approved UV water treatment systems is another. In addition to researching the product, other variables to consider include system size, low versus medium pressure lamps, wattage, spare parts/maintenance and cost/payback.