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Old 03-19-2012, 02:15 PM   #11
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Quote:
Originally Posted by carey View Post
I now use the BRS unit, it is much bigger and has more bells and whistles. lol

I also make like 100g a week. lol

I have noticed one thing I'm not too happy about with the BRS unit and thats how slow it goes in comparison to the ebay one. Takes twice as long as it did before.
I had a similar issue when first using it. Carey, did you happen to flush the system for an hour or so before use? After flushing mine, it worked noticeably faster.
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Old 03-19-2012, 02:27 PM   #12
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I did flush mine for several hours and use the flush kit before I make water each time. The difference is in the membrane. The BRS is only 75gpd and the ebay one is I think 100-150gpd. It used to take me an hour to get 5g now its over 2 hours. Still a great unit though. I will probably get the piggy back membrane to put on the BRS unit so I can make double the water.
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Old 03-19-2012, 02:58 PM   #13
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Carey, do the math. A 75 gpd membrane is capable of making 3.125 gallons per hour under ideal conditions. A 100 gpd membrane can make 4.167 gph and a 150gpd membrane can make 6.25 gph. You can't make water any faster than the slowest link in the chain.

Ideal conditions are water >50 degrees F and > 60 psi < 75 psi. Very cold water in mid winter slows my 150gpd down to about half even with a booster pump.
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Old 03-19-2012, 03:02 PM   #14
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BRS has their 75gpd listed as making 2 gallons and change an hour. I have temps about 77-80 and 65psi in pressure.
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Old 03-19-2012, 04:59 PM   #15
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I may have to grab a unit. I only have a 55g tank so I am sure the eBay unit would suffice.

Ultimately isn't distilled water the same at the ro/di water? If so, it will cost me $4 per 5 gallons which will definitely add up.
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Old 03-21-2012, 02:38 PM   #16
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Distilled and RODI are not the same as they use a different process. Either way you end up with water clear of sediment, heavy metals, chlorine/chloramine, etc.

@Carey, with your temp and pressure the unit should be making the rated capacity of the membrane. If BRS rates it for less it may be just to avoid folks expecting the ideal under less than ideal conditions. You can run a test with a 1 gallon jug to see how long it takes. I have run that test with my AirWaterIce Typhoon III unit and both the 100 gpd and the 150 gpd membranes produced the numbers I posted when the temp and pressure were in the sweet spot.
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