RO Waste water safe to drink?
- Thread starter t316
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notsonoob
Member
Originally Posted by sign guy
why is it more concentrated than regular tap? the sediments and carbon filters have already pulled some thigngs out of the water? check out where I quoted you Ive answerd in red
Actually, you are talking about 5 stage filtration...not multistage RO.
While yes it would be true of some of those things, if the filtration you show me is as such and working properly, then yes it would be cleaner. However, if stages started to fail then your wastewater concentrations would actually be higher than your tap, because at that point your are taking out some of the H2O but the sediment count is higher than the water coming in becase it is more concentrated.
It is like having 1/2 cup of salt in a gallon of water. You take out 1/4 of that water and your salinity concentration goes up. That is what RO does, so if you lose your first stage sediement filtration, then that stuff immedieatly cloggs up the second and third..then everything goes out your waste. OR if you start loosing your third stage, all that stuff will wind up on your RO filter and out the brine.
It is always so much easier with pictures, but alas I am at work
why is it more concentrated than regular tap? the sediments and carbon filters have already pulled some thigngs out of the water? check out where I quoted you Ive answerd in red
Actually, you are talking about 5 stage filtration...not multistage RO.
While yes it would be true of some of those things, if the filtration you show me is as such and working properly, then yes it would be cleaner. However, if stages started to fail then your wastewater concentrations would actually be higher than your tap, because at that point your are taking out some of the H2O but the sediment count is higher than the water coming in becase it is more concentrated.
It is like having 1/2 cup of salt in a gallon of water. You take out 1/4 of that water and your salinity concentration goes up. That is what RO does, so if you lose your first stage sediement filtration, then that stuff immedieatly cloggs up the second and third..then everything goes out your waste. OR if you start loosing your third stage, all that stuff will wind up on your RO filter and out the brine.
It is always so much easier with pictures, but alas I am at work
notsonoob
Member
Originally Posted by ViPeR_930
So if I whip out my trusty TDS meter, bottled water will always test cleaner than tap?
FWIW, I get 25 ppm TDS out of my tap.
YES. If the bottled water has more than your tap...then there is a company out of business.
I think everybody is reading too much into bottled water coming from the tap. And I'll would gaurentee that the bottled water you see at the store is even better than what you feed your fishies.
So if I whip out my trusty TDS meter, bottled water will always test cleaner than tap?
FWIW, I get 25 ppm TDS out of my tap.
YES. If the bottled water has more than your tap...then there is a company out of business.
I think everybody is reading too much into bottled water coming from the tap. And I'll would gaurentee that the bottled water you see at the store is even better than what you feed your fishies.
sign guy
Active Member
so if I understand correctly your saying that the tfc only collects so much tds before it kicks it back out into the rejected water? this would sugest a smart filter, one that could pick and choose the water it wants. IMO the filter ether allows the water into the ro membrant then filters it out or its sent out into the rejected line. there is no way the tds the tfc could not haddle could be forced back out of the membrane and into the rejected line. therefore there couldnt be any concentrated tds in the water
acrylic51
Active Member
Originally Posted by NOTSONOOB
YES. If the bottled water has more than your tap...then there is a company out of business.
I think everybody is reading too much into bottled water coming from the tap. And I'll would gaurentee that the bottled water you see at the store is even better than what you feed your fishies.
Doubt it
maybe you believe to much hype.....maybe the company you worked for or work for might be different, but as a whole......I'd put my unit against the bottled companies.
YES. If the bottled water has more than your tap...then there is a company out of business.
I think everybody is reading too much into bottled water coming from the tap. And I'll would gaurentee that the bottled water you see at the store is even better than what you feed your fishies.
Doubt it
sign guy
Active Member
Originally Posted by stdreb27
The same amount of junk in less water = higher tds.
why dont you think the junk is being cought by the sed filter? why would there be lass water where did it go? and dont say it went into the ro membrane because the water that flows into the membrane still carries "junk" in with it
The same amount of junk in less water = higher tds.
why dont you think the junk is being cought by the sed filter? why would there be lass water where did it go? and dont say it went into the ro membrane because the water that flows into the membrane still carries "junk" in with it
stdreb27
Active Member
Originally Posted by sign guy
why dont you think the junk is being cought by the sed filter? why would there be lass water where did it go? and dont say it went into the ro membrane because the water that flows into the membrane still carries "junk" in with it
I don't know, I just know I've taken my TDS meter, hooked it inline to the rejection line, and get a reading of 400+. I've got the thing set up now, where it reads tap in I get 230's.
I get 0 out of the DI unit, and about 20 out of the RO stages.
why dont you think the junk is being cought by the sed filter? why would there be lass water where did it go? and dont say it went into the ro membrane because the water that flows into the membrane still carries "junk" in with it
I don't know, I just know I've taken my TDS meter, hooked it inline to the rejection line, and get a reading of 400+. I've got the thing set up now, where it reads tap in I get 230's.
t316
Active Member
Well, this last page has just about lost me. However, although I'm not totally sold on drinking the waste water, I'm not buying into the theory that the same amount of "junk" is moved along from one filter to the next. Filters one, two, and three have to be removing something, there not just there for looks. This should leave, at the very least, better water than what entered. Therefore, when it hits the ro membrane, it can't still have the same crud as it did from the tap. And it's not a matter of less water/more concentration because no water has escaped yet, only bad things removed so far.
stdreb27
Active Member
Originally Posted by T316
Well, this last page has just about lost me. However, although I'm not totally sold on drinking the waste water, I'm not buying into the theory that the same amount of "junk" is moved along from one filter to the next. Filters one, two, and three have to be removing something, there not just there for looks. This should leave, at the very least, better water than what entered. Therefore, when it hits the ro membrane, it can't still have the same crud as it did from the tap. And it's not a matter of less water/more concentration because no water has escaped yet, only bad things removed so far.
I don't understand it either, I'll hook up my tds to read the waste water again, just to make sure. It doesn't make any sense to me either.
Well, this last page has just about lost me. However, although I'm not totally sold on drinking the waste water, I'm not buying into the theory that the same amount of "junk" is moved along from one filter to the next. Filters one, two, and three have to be removing something, there not just there for looks. This should leave, at the very least, better water than what entered. Therefore, when it hits the ro membrane, it can't still have the same crud as it did from the tap. And it's not a matter of less water/more concentration because no water has escaped yet, only bad things removed so far.
I don't understand it either, I'll hook up my tds to read the waste water again, just to make sure. It doesn't make any sense to me either.