Priming RODI Unit

[PugsAndFish]

I am setting up a RODI unit for the first time. I got the 75 GPD BRS 5 Stage Unit with the pressure gauge, flush valve, and TDS meter.

I have everything hooked up and am ready to prime. During the 1 hour prime, do I connect the DI canister or do I prime just the 4 canisters on the main/bigger unit?

Same question when I flush the system. Do I flush the system with the single canister (the one with the TDS meter) connected or unconnected?

 

[jrill]

I am setting up a RODI unit for the first time. I got the 75 GPD BRS 5 Stage Unit with the pressure gauge, flush valve, and TDS meter.

I have everything hooked up and am ready to prime. During the 1 hour prime, do I connect the DI canister or do I prime just the 4 canisters on the main/bigger unit?

Same question when I flush the system. Do I flush the system with the single canister (the one with the TDS meter) connected or unconnected?

Very first flush is just the 4 main. Thereafter you can leave the 5th connected.

 

[Dr. Reef Verified Sponsor]

In both cases. Prime and flush DI needs to be disconnected. You dont want to waste DI. Flushing will also be requiring all stages minus DI and leave TDS meter connected.

 

[jrill]

In both cases. Prime and flush DI needs to be disconnected. You dont want to waste DI. Flushing will also be requiring all stages minus DI and leave TDS meter connected.

I don't think so. That initial one hour run is to clean out the system so you can bypass the di. The membrane flush associated with normal use is only flushing the r/o membrane and sending much if anything through the di.

 

[PugsAndFish]

Okay so, do I have this right? (Sorry the instructions aren't answering all of my questions)


1. Connect sink adapter
2. Connect red tube to the sink adapter and put the ends of the blue and black line into the sink (Don't connect the cannister with the TDS meter yet)
3. Make sure flush valve is open
4. Turn on cold water
5. Run for an hour
6. Turn off water
7. Close valve for flush line
8. Connect blue line from the main unit (4 canisters) to the single canister with the TDS meter (which I suppose is the DI unit)
9. Enjoy 0 TDS water
10. When I'm done, open flush valve but no need to disconnect the single canister with the TDS
11. Put away
12. Next time i want to make clean water, open flush valve and run for a minute or 2.
13. Close flush valve and enjoy 0 TDS water

 

[Dr. Reef Verified Sponsor]

When you are flushing di get no water. Ayleast in my system where i have auto flush. It cuts off DI
If i am not mistaken flushing forces water through membrane and out to waste to take all the buildup/crap out to waste.

 

[PugsAndFish]

Is the way the valve is set right now mean the flush valve is closed?

 

[jrill]

Okay so, do I have this right? (Sorry the instructions aren't answering all of my questions)


1. Connect sink adapter
2. Connect red tube to the sink adapter and put the ends of the blue and black line into the sink (Don't connect the cannister with the TDS meter yet)
3. Make sure flush valve is open
4. Turn on cold water
5. Run for an hour
6. Turn off water
7. Close valve for flush line
8. Connect blue line from the main unit (4 canisters) to the single canister with the TDS meter (which I suppose is the DI unit)
9. Enjoy 0 TDS water
10. When I'm done, open flush valve but no need to disconnect the single canister with the TDS
11. Put away
12. Next time i want to make clean water, open flush valve and run for a minute or 2.
13. Close flush valve and enjoy 0 TDS water

Correct

 

[PugsAndFish]

@jrill Thanks! Found a quote from BRS saying the valve perpendicular = good water, parallel = flushing system.

Also, when I'm flushing, I get some water coming out of the blue line. Is that ok or should it be no water at all from the blue?

 

[jrill]

@jrill Thanks! Found a quote from BRS saying the valve perpendicular = good water, parallel = flushing system.

Also, when I'm flushing, I get some water coming out of the blue line. Is that ok or should it be no water at all from the blue?

Some will come out but not full pressure.