Pur Clean RO 3000 Plumbing Help

[RealScott]

I recently purchased an RO system from a neighboring wash that no longer needed it. It is a PC 3000 wall mount, I also purchased the Pur Clean deliver pump system with it.

I’m a 5 bay SS (converting 1 bay to IBA soon) second floor equipment room with all older Mark 7 equipment currently with 7 features.

I want to catch the RO reject water in its own tank. (I am working with structural engineer to make sure the building will carry the extra weight)

I need help with:
What you recommend for plumbing lines and manifolds to bays (specific sizes please).
What pressure you recommend running out to the bays.
How to plumb in the RO reject tank and how to pump it to the “gravity” tanks of the Mark 7 equip.

Thanks Guys!

 

[I.B. Washincars]

Don't use the RO reject in the self serve bays. The TDS is going to be very high and will lead to lots of spotting if it isn't followed up with SFR. The auto will use up the reject pretty much as fast as it is made. There's no need for a huge tank. The system I built was in an issue of SSCWN...fall 2010 I think. It may be here on the forum somewhere, I'll see if I can find it.

 

[MEP001]

What specifically is the delivery pump?

I've been using 3/8" OD nylon tubing for RO to the bays - standard stuff has a working pressure of 250 PSI, and you can find it rated up to 600 with the same inner size.

Customers like a lot of pressure on spot-free. I run it at 450. Anything under 200 is too little IMO. If it has solenoids for the bays you might want to check their ratings.

 

[I.B. Washincars]

Check post #4 in this thread

http://www.autocareforum.com/showthread.php?7720-Reject-Water&highlight=reject

 

[RealScott]

IBW - Thanks for the input and the diagram. I'm not sure I will be able to elevate the tank that much but I will see what I can do.
You bring up another point I have heard both ways and that is using the reject water for SS. Can you help explain the science behind this? My original thought was that it would be much higher PPM, because the junk has to go somewhere, then I had a bunch of people tell me it is better than city water just not <20 PPM level so it rejects. At that point I guess I thought the junk must get stuck in the membrane and stay there.

MEP - The booster pump is a Flint & walling 1hp. I have seen this same issue, everyone says they run "poly" tubing but they also say about 500psi, I cant find poly tubing rated that high.... I do not have solenoids for the bays yet, that's one thing I need to buy and not sure which ones would be best.

 

[MEP001]

You won't find poly tubing rated to 500 PSI. That's why I said nylon.

I use these solenoids: http://www.dultmeier.com/products/search/6027 With a 1" booster pump, you won't need such an expensive solenoid.