AirWaterIce RODI Help

[LIreefguy106]

Hello fellow reefers,

I'm setting up a 90g mixed reef tank with my new AirWaterIce Typhoon 75 GPD RODI unit. Heres a flowchart of how I have it setup in my basement starting from the cold water supply and "Y" attachment to 1/4" RODI tubing
Y attachment
|
Ball valve
|
Prefilter canisters
|
ASOV - Fast Flush- waste (flow is fast)
|
DI resin container
|
Bucket with float valve (flow is trickling)


Here's a video of the setup. Much easier to show that than to type.
The output is trickling and not as powerful as I expected. Here's the setup in reference to the video:

1/4" White tubing - Water supply
1/4" Clear tubing - Waste
1/4" Blue tubing - Output from DI

My concerns:
1) Should I get a pressure gauge? The output from the pre-filter looks pretty good

2) I noticed that when the float valve is in the OFF position, the water in DI resin chamber rises and then when it's completely full, I turn the float valve into the ON position and a rush of water flows out of the tubing until the chamber is empty, and then it goes back to trickling again. I hope this makes sense....

Someone with RODI expertise please chime in so I can get the tank going

Also, I do not have the filters in the chambers for sake of not wasting the filters in the test phases of my setup.

Thanks guys and gals

 

[jsker]

Bump

 

[AZDesertRat]

A RO/DI operates very slowly, not much more than a trickle. The waste flow should be between 3 and 4 times faster than the treated flow depending on your water hardness and TDS.
What do you mean by the filters are not in it? You must have the sediment and carbon block filters in place or the chlorine in the tap water will melt your RO membrane. You can and should flush each filter individually and a quick search ofy username will bring up hundreds of threads with the procedure.
Use a measuring cup and watch or clock and measure first the waste flow for exactly one minute then do the same for the treated flow. It should be about 4 times as much waste as treated or 4:1 waste ratio.
Yes, I could not imagine owning a RO or RO/DI without having an inline TDS meter, it is the best tool you have for troubleshooting next to a handheld TDS meter, both are completely necessary and not optional.
It is normal for the DI level to rise and fall. It is gravity at that point.