I assumed a inline TDS meter thus thought you where referencing to another system.
That's a great system. Certainly will work for any reef system, I've only had experience with the MAX Cap.
Does anyone have a successful sps tank using BRS ro/di?
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I assumed a inline TDS meter thus thought you where referencing to another system.
That's a great system. Certainly will work for any reef system, I've only had experience with the MAX Cap.
Salty1962
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The thing about anything above 65 GPD is to make sure you have enough water pressure, otherwise the efficiency is greatly reduced. BRS has allot of sales for their units. I got mine for $139 during one of their sales.
All RO membranes require an absolute minimum of 40 psi, the gpd has nothing to do with it. 60 psi is much better and 80-100 is great. Not only do you get more gpd out of the same membrane but it becomes more efficient too so DI lasts much longer. A booster pump is one of the best things you can do for a RO along with softened water.
There really is no comparison between BRS and Spectrapure, BRS will cost you many times more in a very short time.
There really is no comparison between BRS and Spectrapure, BRS will cost you many times more in a very short time.
ClownnGoby
Community Member
I run spectrapure Ro/Di set up not saying brs isn't good but why take a chance when u know spectrapure is one of the best and better value
skim
Well-Known Member
Spectrapure may have been around for 30 years but they do not make their own membranes they buy them. They buy all their products and assemble RO/DI units. Filmtec made their first RO membrane in 1963. "They have been #1 in the industry for over 30 years for a reason", what industry Aquarium. Dow has been a leader in the water purification for over 40 years. Now if you're just talking Aquarium ya I guess Spectrapure could be, but believe me if they had to make their own Membranes and DI resins no one would be able to afford any of their units as cost to sales ratio. Dow has 94 locations in just the USA alone Spectrapure has 1 located in Tempe, AZ. and if you Google map it, it is in a Industrial unit, one building and half belongs to Profiles Tool & Engineering, but them make their own RO membranes and Di resins. I don't think so. Now as far as knowing what products to buy and where to buy I am sure they know there stuff and assembling. They just do the same as BRS and tons of other companies buy from manufacture and relabel and assemble.
If you read what I said earlier, Spectrapure uses Dow Filmtec membranes. BUT the difference is they treat and test their membranes. Huge difference and why tbey can guarantee their Select membranes to be 99% or better rejection rate. No other vendor does this period.
They do not make their resins, I never said that. What I did say is they custom blend their resins using only the best, freshest resins available. They buy from many manufacturers then based on thousands of hours of real world testing they blend them for specific purposes.
Both of these add up to big cost savings to the end user.
They do not make their resins, I never said that. What I did say is they custom blend their resins using only the best, freshest resins available. They buy from many manufacturers then based on thousands of hours of real world testing they blend them for specific purposes.
Both of these add up to big cost savings to the end user.
ritter6788
Coral Fraud Private Eye
I did ok with my tank. Never used anything other than BRS RO/DI.
Not saying you can't but why spend more money per treated gallon, for lesser quality water than you have to? Ask those who have used both and you will find the Spectrapure will cost you much less. Why settle for average?
skim
Well-Known Member
Yes you are right but I believe DOW does the testing already as stated in Tech info. every membrane is inspected and tested before leaving facility and the 75 Gal has a 99% rejection rating at 50 psi when you up it to 75 or 80 psi well into 90 gal. if you look up the Tech info on the Membrane. Price wise I am not sure which is cheaper in the US but up here believe it or not they ask $80 and up for the 99% Spectrapure and about $40 to $45 for the DOW, so you can understand why many become very upset when they find out it is the same membrane but at double the cost. You are also right they do offer a good product and have done so for many years, he cut himself a nice niche in the Aquarium Ind. So in the end it seems that it is the same Membrane and one should buy where they can find the best price.
No, Dow membranes are not tested and they are shipped dry, you get what you get. Like any manufacturer they test a random sample but it's maybe one in a thousand. Dow does not guarantee the rejection rate, it is "98% typical" but no guarantees. They are not the same membrane.
Read about what Spectrapure does, why they are different and why they save you money here:
http://spectrapure.com/frequently-asked-questions
Read about what Spectrapure does, why they are different and why they save you money here:
http://spectrapure.com/frequently-asked-questions
Lots of spectrapure fans, almost like lifereef, can't say anything negative. To the OP yes brs units are just fine. My experience with membranes...
Picked up 2 spectrapure 99% for 2 units I have. Never could get them above 90% rejection. That's ok, figured must be some reason I don't know about. Set the waste ratio as they recommend. It was fine, no biggie. About 8 months later rejection % on both was horrible so I picked up BRS system. (Yes the SP had new filters and all that jazz). I just tested my brs system with their 99% membrane and it's 98.5% right now after about 5 months. So I like brs. Both were set up similar.
I am sure someone will say I was doing something wrong, that's fine to say, I don't care, this was just my experience with the two.
Picked up 2 spectrapure 99% for 2 units I have. Never could get them above 90% rejection. That's ok, figured must be some reason I don't know about. Set the waste ratio as they recommend. It was fine, no biggie. About 8 months later rejection % on both was horrible so I picked up BRS system. (Yes the SP had new filters and all that jazz). I just tested my brs system with their 99% membrane and it's 98.5% right now after about 5 months. So I like brs. Both were set up similar.
I am sure someone will say I was doing something wrong, that's fine to say, I don't care, this was just my experience with the two.
Did you contact Spectrapure? They guarantee their Select series membranes in writing.
skim
Well-Known Member
There is a Spectrapure product that I swear by and highly recommend to help extend your DI.
MaxCap Mixed-Bed Deionization [DI] Cartridge
Brief Description: The revolutionary MaxCap DI ™ cartridge has over 3 times more capacity than any other Mixed-Bed or Hi-Silica removal deionizing cartridge. When placed upstream of your existing DI cartridge, the life of your downstream DI will increase by nine times or more! This incredible break-through in DI cartridge technology will reduce your costs to produce DI water by over 50%.
MaxCap Mixed-Bed Deionization [DI] Cartridge
Brief Description: The revolutionary MaxCap DI ™ cartridge has over 3 times more capacity than any other Mixed-Bed or Hi-Silica removal deionizing cartridge. When placed upstream of your existing DI cartridge, the life of your downstream DI will increase by nine times or more! This incredible break-through in DI cartridge technology will reduce your costs to produce DI water by over 50%.
That info sheet on the Dow is interesting.
According to it. The minimum it should remove is 96-99%.
So a difference of 3%.
Spectrapure is minimum 98-99%
So a difference of 1%.
Now those numbers don't seem like huge differences but when considering it is a measurement of how much stuff may pass through the spectrapure seems much better.
But back to the OPs main question. Yes the BRS unit is perfectly fine. If you want a great deal I would look at the spectrapure unit posted. Otherwise grab the BRS unit.
According to it. The minimum it should remove is 96-99%.
So a difference of 3%.
Spectrapure is minimum 98-99%
So a difference of 1%.
Now those numbers don't seem like huge differences but when considering it is a measurement of how much stuff may pass through the spectrapure seems much better.
But back to the OPs main question. Yes the BRS unit is perfectly fine. If you want a great deal I would look at the spectrapure unit posted. Otherwise grab the BRS unit.
ClownnGoby
Community Member
Not sure if they still have them but specrapure was selling refurbished 90gpd ro/di for 129.99
