Where to buy hose bib for RODI?

[cwatkins]

What you should really do is (have a plumber) tap into your water line before the main PRV. This way you get the higher city pressure, and thus better efficiency. Then he can just ensure that there is a 1/4" coupler so you can plug your RO/DI line right in without the need of a hose bib attachment.

This is how mine is done.

Note: on the other hand, I think I've seen those parts in the picture at Home Depot before...

[mike31154]

I plumbed my RODI to the cold water pipe supplying the washer. Got most of the parts at Can Tire, pressure guage at Princess Auto (two actually). Copper tee, ball valve, copper to PVC JG type tee fitting with a handy 1/4" valved outlet to the pressure guage, then another adapter that takes the larger fitting down to JG 1/4" size for RODI.

I tweaked my PRV to provide 85 psi downstream vs the standard 60. Not sure I'd want to plumb the RODI in upstream of the PRV where it would have to deal with full city water pressure which can be up to 120 psi where I live. Some of the RODI system components may not be able to handle that long term.

[cale262]

I just went down to the local hardware store and bought a kit that they sell for installing to your fridge ice cube/water... It was about $15 and came with a line tap and 30' of hose...

[-=James=-]

Thanks everyone. I dont know much about plumbing and hose bib is easiest for me.

I went down to Home Depot and bought 3 pieces to assemble the hose bib. What is the pressure gauge for? Dont I just turn the hose on when I need RODI water?

[mike31154]

Originally Posted by -=James=-

What is the pressure gauge for? Dont I just turn the hose on when I need RODI water?

RODI systems are designed to work optimally at a certain pressure & temperature. Without a pressure gauge you have no idea whether your system is going to perform according to expectations. If the pressure is too low, it will be very inefficient, making more waste than pure water and taking much longer to make the pure water. If it's too high (unlikely) you run the risk of blowing your RO system or even your plumbing.

By all means you may simply turn on the hose & let 'er rip when you need water but I like to know what's going on. Many RO systems come with a pressure gauge installed between the prefilters & the membrane to monitor performance, ie, when your membrane might need replacing. I've decided to take it a step further and use two pressure gauges, the one you see in the photo to measure input pressure & the one before the RO membrane. This makes it very easy to determine if there's a drop in performance due to increasing pressure differential between the two gauges. Most of the time all I need to do is replace the first stage 5 micron poly prefilter & I'm good for a bunch more gallons.