Cscultho Posted February 15, 2017 Share Posted February 15, 2017 I'm modifying my plumbing to attach an RO/DI system and need to add a valve to connect too. My question is should i avoid using any type of copper valves or will the RO/DI eliminate any trace element of copper that might leach from the fitting? Link to comment
jestep Posted February 15, 2017 Share Posted February 15, 2017 I use these: http://www.bulkreefsupply.com/mur-lok-ro-inline-ball-valve-push-connect.html And have never had an issue. They're very smooth operating, much better than most of the smaller john guest or DMfit valves. Some more options: https://www.freshwatersystems.com/c-379-shut-off-valves.aspx The parker liquifit have been very good as well in my experience. It's probably not a huge issue especially considering how much copper piping is used in home water systems, and it's not like you're going to have copper dissolving in your RO system, but why risk it. Link to comment
Cscultho Posted February 15, 2017 Author Share Posted February 15, 2017 I use these: http://www.bulkreefsupply.com/mur-lok-ro-inline-ball-valve-push-connect.html And have never had an issue. They're very smooth operating, much better than most of the smaller john guest or DMfit valves. Some more options: https://www.freshwatersystems.com/c-379-shut-off-valves.aspx The parker liquifit have been very good as well in my experience. It's probably not a huge issue especially considering how much copper piping is used in home water systems, and it's not like you're going to have copper dissolving in your RO system, but why risk it. Does the valve you used connect to PEX tubing? Link to comment
jestep Posted February 15, 2017 Share Posted February 15, 2017 Does the valve you used connect to PEX tubing? Yes, pex is just a brand of tubing, but the ones in the links connect to the standard 1/4" tubing, which is what most RO/DI systems use. Any of the brands work fine, push connect tubing and fittings are universal sized. I have mixed john guest, pex, mur lok, parker, and probably others on different projects, you just need to make sure you match up the correct size tubing and fittings. Link to comment
AZDesertRat Posted February 17, 2017 Share Posted February 17, 2017 As long as the copper/bronze/brass is on the tap water side it is not a problem. Never install any metallic plumbing past the RO membrane though. Link to comment
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