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Old 01-14-2010, 04:46 PM
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Quote:
Originally Posted by littlesilvermax View Post
Why. I don't get what the difference would be from a hot to a cold line.
Depends on where it's plumbed from I guess? if RO intake is taken from the cold, and waste is loped back into the cold, some waste water could just loop around and go back in the RO intake. But, if it's set to make water when a cold tap is open, it won't. the waste will go to the tap.


I acctually was thinking of doing this with my setup, as I am on septic and all the waste screws with the bacteria level in the septic. One thing I never figured out yet for this is if the cold water taps in house are off, there is still inlet pressure at the RO, but no where for the waste to go. The membrane now just becomes an expensive filter, and will plug real fast. No waste water to flush out captured impurities. They must use some kind of waste water presure tank and a auto shutoff on the waste line too
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Umm, a tank or 5
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Old 01-14-2010, 07:41 PM
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Technically speaking if you're using your RO water then you're using water from your cold water supply so the RO unit will continue to make more water and if the waste is plugged into the cold water supply the filter will be forced to use waste water for intake unless you happen to be using another source for tap water at the same time which isn't always likely. Obviously not the greatest solution to the problem of waste water but at the end of the day it's still the most efficient system available. This is why a new system would be very innovative and honestly if I was making it I wouldn't say a word until I had a patent in place and even then wouldn't be targeting the smallest possible market for the product. Hence, I'll believe when I see it

In the mean time if the discussion is going to continue on the bases of zero waste RO we should move the discussion out of this vendors thread. I'd like to talk more about it as well and see if we can't rig up a DIY plug-in that can be adapted to all existing standard RO units.
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Old 01-15-2010, 04:10 AM
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We are having one problem.. The cost of the filters is extremely high. These filter are from the Pharmaceutical industry. Just wanted to keep everyone in the loop and that myself and our suppliers are trying to get the cost down...
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Old 01-15-2010, 07:07 PM
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well tell us how much they are if i spend 70-80 on a membrane 2x per year. and prefliters x 6 for the 1 micron and 6 and carbon 15 per pop and i use 4 of them

it will add up
is the filter life is how long thou. is this a cold sterile unit
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Old 01-18-2010, 11:55 PM
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an update on the replacement filter costs is roughly $300... which is a joke in this industry.. To be honest.. i wouldn't pay that so we are trying different filter combinations to get the water quality we're after...
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Old 01-20-2010, 12:30 AM
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HOw long does the filter last.
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Old 01-20-2010, 04:43 AM
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