What RODI unit should I get?

[kurtyboh]

i've probably learned more from this rodi thread than the hundreds ive seen before it!

 

[Buckeye]

Here are some things to look for in a good system for this hobby. And by "good" I mean a system that will provide 0 TDS water, have a low O&M cost, provide you the information to troubleshoot the sysem, and will be likely to give you minimal difficulties:

• No more than 4 stages (sediment, carbon, RO, DI) unless you have specific water quality issues you want to address
  
• Standard-sized prefilters, membrane, and DI cartridge
  
• Brand name, high-rejection membrane
  
• Specifications provided for each stage
  
• Pressure gauge after the prefilters and before the membrane
  
• Thermometer
  
• TDS meter (handheld or in-line)
  
• DI bypass
  
• Vertical DI stage
  
• Refillable DI cartridge
  
• Aluminum bracket
  
• Quick connect fittings
  
• No water from pressurized storage container delivered to DI
  
• Flush valve
  
• Clear housings
  
• High-quality instructions written in clear English
  
• Customer support before, during, and after your purchase
  
• A vendor involved in your hobby

Russ

 

[cabezon]

Oh and slightly off topic are those tds meters that come with zerowater pitcher filters any good?

Yup, works fine. They want you to read accurate TDS so that you'll buy more filters. I used the pitcher until I got a DI stage.

 

[melosu58]

Moved to General Hardware and equipment discussion.