Hooking up RODI directly to water supply

[Bam327]

Hey all. I’m in the final stages of setting up a 120 tank. One of the things I’m working on now is my RODI. I was in the hobby 15 years ago and had a few floods from my RODI filter, one occurring from a leak between the faucet and the screw on ro connection. I’m doing my best to eliminate that from happening again. I am setting up my filter in my basement and tee’d off my 1/2” water line. My feed line to my filter is 3/8” tubing. I bought a 1/2” x 3/8” sharkbite reducer thinking I could use that to directly plug into my feed line to my filter. However the 3/8” ro tubing is much smaller than the 3/8” sharkbite that takes pex pipe. Does anyone know what connection I need to make this union? Any help is much appreciated!

 

[mfinn]

I have a 1/2" valve off my water line in my garage that has a reducer that goes from the 1/2" pex pipe to the 1/8th" ro tubing.

 

[mfinn]

excuse the mess, all of this is going to be replaced tomorrow.

 

[Bam327]

Thanks mfinn! Where can I find the fitting at the top on your ball valve? I spent 2 hours today with an associate from Lowe’s trying to make that connection. It’s so frustrating that poly tubing sizing is way different than pex sizing.

 

[Mical]

I tee'd into my washing machines cold water supply w/this double valve from HD

 

[mfinn]

I believe I actually found it at Lowes.
But I was just at Lowes and they didn't have much of the stuff they used to.

Take a piece of the ro tubing with you and get a new shark bite 1/2" valve with threads on one end ( shark bite on the other) and tell the associate you need whatever they have to make the 2 to connect.

Maybe venture on to Home Depot or Ace Hardware.

 

[Woodneers]

You will need an old school compression fitting and a bushing to adapt to pipe. Any good hardware store should have both. Usually made of brass. You might find a nylon version as well.

 

[Reef-junky]

You could also use a saddle valve but your best bet is like the picture.

 

[Bam327]

Thanks guys. I have a plumbing supply store that’s local. I’ll try them tomorrow.

 

[Woodneers]

Would any of this be useful to ya? I’m willing to send it your way.

 

[Bam327]

Thanks for the offer Woodneers but all I need is a stupid little fitting that’s of course hard to find

 

[MTBake]

I used a compression fitting from Home Depot to install mine.

 

[Reef-junky]

https://blog.marinedepot.com/educat...everse-osmosis-deionization-rodi-system-works

 

[Reef-junky]

Thanks for the offer Woodneers but all I need is a stupid little fitting that’s of course hard to find

Do you have a saddle valve for the waste water line?

 

[SeaJay]

1/2” pex to 1/4” tube with a couple bushings from Lowe’s.

 

[Pau Hana Reefer]

I've been using this since last April. Been working out well for me. I don't think this is the right size for you but maybe you can find something similar in your size.

JG Speedfit ASVPP1LF 3/8-Inch by... Amazon product ASIN B003YKF2JC

 

[MTBake]

My home depot also had these. I decided to go with the compression fitting over the push in. Less chance of leaking ime. They also had sizes for 3/8 of tube if I remember correctly. The guy working there was useless. Had to find this stuff on my own in their store.

 

[Woodneers]

That John guest fitting would be exactly what I would use.

 

[Bam327]

Well the weird thing is is that my feed line to my filter is 3/8 tubing. All the other tubing is 1/4”. This may be causing the problems...

 

[Bam327]

Do you have a saddle valve for the waste water line?

I do not. But I’m not sure I need one. There’s an open access to my sewer line where I’m installing my filter that I can drop the waste water line into