Cscultho

RO/DI Plumbing

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?

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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.

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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?

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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.

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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.

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