RODI unit

[camps23]

I just purchased a 75 Gallon reef setup and was given a used RODI unit with the setup. The unit is a Water General RD-106. I was told the cartridges are about 6mnths old. When I hook it up and filter the water my readings on my TDS meter are around 002 or 003. My problem is its suposed to be a 1:3 ratio waste to filtered but Im getting less than 1 gallon per every 5 gallon wasted. What can I do is it cartridge related. Here is a link to my setup
Watergeneral: Aquarium Water Purification Systems

 

[ccCapt]

Cold water affects the waste water ratio. When it gets warmer out you will see an improvement in the good water output.

 

[camps23]

Thanks capt I will keep that in mind

 

[Bifferwine]

Also, is your water pressure sufficient for the unit?

 

[camps23]

Yes from what I read I should have 40-50psi and I'm running about 40

 

[camps23]

Sorry the range should be 40-80. Im running smack in the middle at 60. It just sucks wasting 5-6gallons of water per 1 gallon of RO water. I was thinking of calling a "water supply" store to see if they would do an overhaul on the unit

 

[HeavyHittah]

I know this thread is way old, and I'm not even sure how I found it. But you can wash clothes and dishes with the waste water. If you aren't already