There's two shut off valves. One is close to the chilly water line heading up for your cold and warm kitchen area faucet. It really is at stake feeding the RO system. The next one is situated along with the steel tank. Highly endorse this organization to give your house http://news.thenewsbee.com/story/506390/advanced-water-rebrands-to-keep-up-with-changing-office-culture-and-cleaner-hydration-needs.html