looking to get an RODI unit but don't know which to get, I don't want to spend an arm and a leg >$200 would be great but willing to spend a bit more if need be and I would like one that has a good ratio of clean water to waste water. Suggestions?
Good RODI Unit?
- Thread starter Shep
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You won't find a better system than this anywhere else for less than $250.
http://spectrapure.com/Refurbished-90-GPD-RODI-System
Or this one on special gets you an additional carbon block, the super size DI and a triple inline TDS meter and is still in your price range
http://spectrapure.com/RO-RODI/RODI-SYSTEMS/Chloramine-Removal-90-GPD-RO-DI-System
One of the oldest names in the business with over 25 years in the same US city and have always supported the reef hobby and many of the forums.
http://spectrapure.com/Refurbished-90-GPD-RODI-System
Or this one on special gets you an additional carbon block, the super size DI and a triple inline TDS meter and is still in your price range
http://spectrapure.com/RO-RODI/RODI-SYSTEMS/Chloramine-Removal-90-GPD-RO-DI-System
One of the oldest names in the business with over 25 years in the same US city and have always supported the reef hobby and many of the forums.
OP
OP
That second one you linked is a amazing deal! I might just have to pick it up. So whats the monthly upkeep on these? I would be making at most 100 gallons a month (probably much much less)
You replace the sediment and carbon block filters every 6 months and the DI resin whenever it is no longer 0 TDS in the treated water. For most users this ends up costing about 5 cents per gallon of RO/DI when you average it out.
Most filters are a standard 10" nominal size but there are many many different quality levels. Myself I have owned systems from 6 different manufacturers or vendors and today I will only buy from Spectrapure. They are the ONLY vendor to specially treat all their RO membranes proven to increase their performance then to either batch test them or individually hand test each and every one in the case of their Select series guaranteed 99% rejection rate membranes. They also are the only vendor to custom blend every ounce of their own DI resins in house based on thousands of hours of both real world beta testing around the globe and bench testing in their facility in Tempe AZ. On top of that they only offer sediment and carbon block filters they subject to intense testing to ensure they meet their strict quality control and one of only a couple that use only capillary tube flow restrictors which are far superior to the normal fixed type restrictors most use. Yes you could buy from BRS or wherever but it would not be the same quality. For instance BRS uses a coarse 5 micron nominal rated sediment filter while Spectrapure uses a 1 micron in their refurbished systems and a 0.5 micron absolute rated sediment filter in their Chloramine special system. Since we know you can actually see 40 microns with the unaided human eye, 5 microns nominal is about as effective as a screen door compared to 0.5 micons absolute when it comes to protecting the billions of tiny microscopic pores in the carbon block where the chlorine is adsorbed.
If you have a little time on your hands, go to the Spectrapure website, scroll down to the bottom of the page and read through their FAQ section and why their systems are different than other and what that means to you. There really is a difference.
I am on my third Spectrapure system, I started with the 90 GPD MaxCap which was worlds better than the AWI Typhoon III it replaced. I next upgraded to the 180 GPD dual membrane MaxCap and the speed and water quality were amazing. For the last 7 years I have had the MaxCap UHE-100 ultra low waste system and it is an amazing piece of engineering with less than 1:1 waste ratio and paid for itself in less than 2 years with much longer filter, membrane and DI life along with huge water savings. The price will give you sticker shock but there is nothing else like it on the planet.
Most filters are a standard 10" nominal size but there are many many different quality levels. Myself I have owned systems from 6 different manufacturers or vendors and today I will only buy from Spectrapure. They are the ONLY vendor to specially treat all their RO membranes proven to increase their performance then to either batch test them or individually hand test each and every one in the case of their Select series guaranteed 99% rejection rate membranes. They also are the only vendor to custom blend every ounce of their own DI resins in house based on thousands of hours of both real world beta testing around the globe and bench testing in their facility in Tempe AZ. On top of that they only offer sediment and carbon block filters they subject to intense testing to ensure they meet their strict quality control and one of only a couple that use only capillary tube flow restrictors which are far superior to the normal fixed type restrictors most use. Yes you could buy from BRS or wherever but it would not be the same quality. For instance BRS uses a coarse 5 micron nominal rated sediment filter while Spectrapure uses a 1 micron in their refurbished systems and a 0.5 micron absolute rated sediment filter in their Chloramine special system. Since we know you can actually see 40 microns with the unaided human eye, 5 microns nominal is about as effective as a screen door compared to 0.5 micons absolute when it comes to protecting the billions of tiny microscopic pores in the carbon block where the chlorine is adsorbed.
If you have a little time on your hands, go to the Spectrapure website, scroll down to the bottom of the page and read through their FAQ section and why their systems are different than other and what that means to you. There really is a difference.
I am on my third Spectrapure system, I started with the 90 GPD MaxCap which was worlds better than the AWI Typhoon III it replaced. I next upgraded to the 180 GPD dual membrane MaxCap and the speed and water quality were amazing. For the last 7 years I have had the MaxCap UHE-100 ultra low waste system and it is an amazing piece of engineering with less than 1:1 waste ratio and paid for itself in less than 2 years with much longer filter, membrane and DI life along with huge water savings. The price will give you sticker shock but there is nothing else like it on the planet.
