Professional Installers & Local Laws
It is recommended that you contract a licensed plumber to install your NaturalSof 6L unit.
Check your local laws and ordinances to ensure compliance with any permitting, certifications, and material
requirements prior to installing your unit.
Your plumber should be able to assist you with this. If you are planning on self-installing, call your local
government offices or utility prior to installation and make sure to fully comply with all requirements.
Internal System Materials and Certifications
While no federal regulations exist for residential water treatment devices, several voluntary national standards
establish minimum requirements for the safety and performance of products used to treat home drinking water.
These standards are generally divided according to the product’s technology. The numbers assigned to each
standard reflect the order in which the standards were developed.
(NSF/ANSI STANDARD 372)
As of January 4, 2014, the Safe Drinking Water Act (SDWA) requires drinking water products sold or installed for
use in public water systems, as well as plumbing in facilities, to meet a weighted average of not more than 0.25
percent lead. Third-party certification of these products to the new lead-free requirements will be required in
many jurisdictions. Additionally, the states of California, Vermont, Maryland and Louisiana have already instituted
these requirements for products currently in the market.
NSF certified products bearing these marks comply with the new lead-free requirements
(NSF/ANSI STANDARD 61)
If you manufacture, sell or distribute water treatment or distribution products in North America, your products are
required to comply with NSF/ANSI Standard 61: Drinking Water System Components – Health Effects by most
governmental agencies that regulate drinking water supplies. Developed by a team of scientists, industry experts
and key industry stakeholders, NSF/ANSI 61 sets health effects criteria for many water system components
including:
Protective barrier materials (cements, paints, coatings)
Joining and sealing materials (gaskets, adhesives, lubricants)
Mechanical devices (water meters, valves, filters)
Pipes and related products (pipe, hose, fittings)
Plumbing devices (faucets, drinking fountains)
Process media (filter media, ion exchange resins)
Non-metallic potable water materials
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