RO unit question

[ReefDreamz]

Hello everyone, I have a coralife RO unit thats rated for 24 gallons per hour but its pumping out about double that. Also it seems like the RO water (coming out of the blue tube) is coming out faster than the waste water (red tube) is this possible? The unit is almost brand new I only used it to fill up my tank (46 gallons) and top off the water twice. Thanks for any help.

-Cody

 

[ReefDreamz]

actually nevermind I just did a race filling up two coffee cups. The waste water is coming out slightly faster.

 

[vr697getta]

most ro/di run 4-1 ratio so the waste water should be comming out 4x faster
did you test the water
is the water pressure up to high

 

[AZDesertRat]

Sounds like the membrane is not seated properly in the housing. What are the TDS readings and what exactly is the waste ratio, pressure and temperature?

 

[vr697getta]

listen to AZDesertRat he knows all

 

[iflipsidei]

how do you measure the 4-1 ratio, i just got mine today also and installing this weekend. Just have a fill a glass race?

 

[Buckeye Hydro]

AZ Rat Man is on the right track...

 

[AZDesertRat]

Use a measuring cup or other graduated device to measue the water and a watch or clock to time it. Time the flows from one line then the other for a minimum of 5 minutes to get a good representation. You should be seeing about 4 times as much flow from the waste line as from the product or good line. You can also gauge what your GPD truly is this way. There are 1440 minutes in a 24 hour period so just calculate it out.