There are two shut off valves. A person is near the cold water line likely up towards your hot and cold kitchen area faucet. It is actually at stake feeding the RO program. The second a person is located along with the metal tank. Andy at Advanced Water Answers restored http://markets.financialcontent.com/startribune/article/getnews-2025-6-17-advanced-water-rebrands-to-keep-up-with-changing-office-culture-and-cleaner-hydration-needs/