Any one try these zero filters with tds meter.

[markl]

I was at target and saw these zero water filters. theyclaim to give 0 tds . cost is only 30.00 thought it might be good for some one with a nano or for an emergency. just wondering how it could work with out having pressure water running through it and no waiste water.

 

[markl]

I was going to buy one and test it with some that has there own tds meter .If it didnt come to 0 idtake it back.

 

[lilrobb]

It's just DI resin they're doing - a flow restrictor and a bucket full of DI would do the same...

 

[jennm]

Brian asked me the same question this morning when he saw an ad for one of those. He's thinking of getting one to try. Need to buy new batteries for my TDS meter (And calibrate it).

If we do it, I'll post my findings.

Jenn

 

[lilrobb]

You are, LOL

osmosis always works in the other direction than we're used to in our REVERSE osmosis systems.
It actually would pull quite a bit of water into your cells in an attempt to water them down (cell membranes are not permeable for solids) - so if you would drink about 5 gallons of RODI you can get something called "water poisoning"...

There are some good articles on it...

 

[acroholic]

At my level of tapwater TDS (about 40), It looks like one of these filters is good for about 40 gallons or a bit more per their website. I'd definitely do a cost analysis befroe buying this vs an RO unit.

But it would be good for an emergency, I guess.
Dave

 

[markl]

dawgdude;412815 wrote: So its gonna get depleted real quick then if you have high TDS at all.


WHOA! Btw I thought drinking 0 TDS water wasnt good for you? Someone with more medical/chem knowledge can comment but I was under the impression drinking RODI was not good because it strips the cells of beneficial substances since its just H20. I could be completely wrong on this though.

I was thinking the same thing when i saw it. I just thought it would be good to have in an emergency if some one doesnt have rodi set up.

 

[schwaggs]

LilRobb;412816 wrote: ...if you would drink about 5 gallons of RODI you can get something called "water poisoning"...

I think if you drink 5 gallons of ANY water you will get water poisoning.

I bet it tastes horrible.

 

[markl]

Schwaggs;412834 wrote: I think if you drink 5 gallons of ANY water you will get water poisoning.

I bet it tastes horrible.

I heard this before. So i tested it. I run pretty often but never have water untill im done. I decided to get on my wifess treadmill and run 3 miles. during the time of running i drankas much water before during and after the run. I consumed about a gallon of water in 1 hour. My urine was clear most of the day and I felt light headed and sick. My familly drinks water most of the day no sodas or sugar drinks. Im use to alot of water but man it made me so sick, and kind of drunk feeling after drinking it so quick and fast.

 

[jennm]

MarkL;412837 wrote: I heard this before. So i tested it. I run pretty often but never have water untill im done. I decided to get on my wifess treadmill and run 3 miles. during the time of running i drankas much water before during and after the run. I consumed about a gallon of water in 1 hour. My urine was clear most of the day and I felt light headed and sick. My familly drinks water most of the day no sodas or sugar drinks. Im use to alot of water but man it made me so sick, and kind of drunk feeling after drinking it so quick and fast.

Should come with a disclaimer: DO NOT TRY THIS AT HOME! :lol:

Jenn

 

[ichthyoid]

LilRobb;412816 wrote: You are, LOL

osmosis always works in the other direction than we're used to in our REVERSE osmosis systems.
It actually would pull quite a bit of water into your cells in an attempt to water them down (cell membranes are not permeable for solids) - so if you would drink about 5 gallons of RODI you can get something called "water poisoning"...

There are some good articles on it...

5 gallons causing water 'poisoning'...Yes very likely, but I think he was referrring to what is sometimes called 'osmotic schock". Drinking a large quantity of deionized water is theoretically life threatening. However, I do not know of anyone who actually died of this. As described above, living tissues which separate solutions of differing concentrations of salts (the solute), the fluid (or solvent) will move from the lower to the higher concentration side in an effort to reach the same concentration, also known as 'osmotic equilibrium'. This is a physical mechanism of nature.

http://en.wikipedia.org/wiki/Osmosis">http://en.wikipedia.org/wiki/Osmosis</a>

The filter they refer to above is as LilRob said DI (or deionizing) sometimes referred to as an ion exchange resin. They are comparing this type filter to granular activated carbon, which chemically is apples to oranges. Further, the results are HIGHLY dependent on the test method. People that advertise with claims like these are selling snake oil (IMHO), and I am calling them out on it. If their product is anything other than a deionizing resin, which you and I can already buy for similar or better $$ and likely better quality too, then let them defend it!

 

[ichthyoid]

dawgdude;412866 wrote: I live with 3 third year med school kids and they all said people can and HAVE died from water poisoning. They said medically water poisoning is a form of osmotic shock and osmotic shock has multiple forms (they are rattling off a list as I type). The most famous one they were taught was a radio station contest as to who could drink the most water without letting any out. The guy who won died. From what they said sodium, potassium and calcium are the major factors that get diluted and it dilutes the electrolytes within the blood.

Ok, I'll bite. Besides being hypertonic (too much liquid) OR hypotonic (too little liquid), as it's sometimes known in Biology/Medicine, what other forms of osmotic shock are there (besides being special cases of certain ion imbalance's)?

Yes, drinking deionized water is a 'worst case scenario', and too much 'tap' water can be lethal as well. I just said that I don't know anyone who has died of this. Unfortunately, there have been deaths, per your Med School 'Kids'.

 

[ichthyoid]

dawgdude;412904 wrote: Haha med school kids. Funny. They are in the hospital seeing patients so I hope they are far from kids! One sewed up a knife wound today and another put in a peg tube. Kids these days are growing up so fast! When I get home from dinner I'll ask the "kids" to clarify for you. Although since you being a smart $&@ I might not waste their time and let you actually look for yourself.

Ouch! I didn't mean for this to get personal.

FYI- I work with Doc's all day/every day, and we mutually respect each other. Even when opinions differ.

 

[grouper therapy]

I'm confused are they kids are not ?

 

[ichthyoid]

dawgdude;412866 wrote: I live with 3 third year med school kids and they all said people can and HAVE died from water poisoning. They said medically water poisoning is a form of osmotic shock and osmotic shock has multiple forms (they are rattling off a list as I type). The most famous one they were taught was a radio station contest as to who could drink the most water without letting any out. The guy who won died. From what they said sodium, potassium and calcium are the major factors that get diluted and it dilutes the electrolytes within the blood.

Dude,

not picking a fight here, but you are the one who called them "kids" (see first sentence above), and I was amused by that, so I 're-quoted' you.

As for condescending, anyone that takes the time to really get to know me finds out two things about me in pretty short order...

1) I'm just a dumb @&% engineer, who never lost his passion for learning,
and
2) I live to help others, especially surgeons, which most think I'm pretty mailto:d@%">d@%</a># good at.

You have a good one too!