RODI system working correctly?

[SenorBubs]

Hey everyone!

I’m fairly new to reefing and have been buying distilled water for the water changes which was too much... so I got myself a used RODI system to save myself some time/money. But the output for the filtered water is dripping while the waste water is flowing out which doesn’t seem efficient but what do I know. Can anyone help tell me if this is working properly? Here’s a video of it.

 

[Valum]

Show us your waste line so long as there's no ball valve you should be good to go

 

[Valum]

Also is there a flow restrictor on the waste line?

 

[KStatefan]

Is there a flush valve on this system? If there is is it closed?

Had the membrane been allowed to dry out?

Did you replace filters and membrane when you set it up?

 

[Valum]

Is there a flush valve on this system? If there is is it closed?

Doesn't look like it after watching the video several times however I can't see an external flow restrictor

 

[Snoopy 67]

There is a ratio needed here. Most units run 4 gallons waste to 1 gallon product water. The flow restrictor is located in the waste line on some units. Cold water will have a pronounced effect on water production along with water pressure. Pressure too low & you need a booster pump. A dried out membrane needs to be replaced. Never drain the unit unless you are going to replace the membrane, filters can be changed without the membrane becoming dry. When replacing the carbon block flush it to drain before running through the membrane.

 

[SenorBubs]

So I just tested using two 5 gal buckets and the ratio is well under 1:4. The pressure is above 40 so maybe it is the filters then. I haven’t replaced them since I got it, I bought this system used, but I do have spares. I’ll resolve them now and update you.