Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Llaaww on November 12, 2007, 10:05:18 am
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Being a tight wad i want to know if I could extend the life of the resin that I am using.
What I want to know is,if I run some ro water through the di vessel when the resin dirty will it bring down the tds
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Are you for real???
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In a word..........No
You run the RO water through the DI to bring he TDS down the 0.00 in the first place.
Bob
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I dont think I explained it all that well. my tds at the tap is about 70 so I tend to use the di vessel most of the time straight from the tap. I also have a couple of ro units sitting idle that also come up with 0 tds.
I figured that if the resin is passed its best I could put 0tds through it and flush out the dirt and it would last longer.
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I see. Not sure about that one, sorry.
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Are you for real???
there is nothing wrong with asking that question, I certainly have thought about it myself.
back to the topic, why dont you just run all your water through the RO.
this will save you a small fortune in resin.
Water in to RO, through resin and out up pole. Resin will last you a long long time,
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Personally if you have tap water of 70 tds and after RO only you achieve 0 tds, why bother with Di resin at all?
To answer your question you can re-charge resin, see a water softener website and that should tell you how, but as already said, with your low tap tds, i personlly wouldn't bother with the hassle of it all :)
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The recharging of resin is not easy, and involves acid and all sorts!
The DI 'cleans' the water by exchanging of ions and so on, this isn't something you can simply flush away :-\
I can understand you having DI only though, zero waste for one thing and instant production of purified water to boot.
I wouldn't bother looking into recharging your resin, really isn't worth it.
Ian
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I thought recharging resin simply involved salt-water reverse flow. If the resin works how the water softening websites state their systems work, the salt is used to clean their resin using an osmosis process..
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Use 2 Di Tanks in tamden, this makes the resin last up to 4 times longer.
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Use 2 Di Tanks in tamden, this makes the resin last up to 4 times longer.
please let me know how this make it last 4 times longer ????
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I haven't a clue :P Before I connected the 2 di tanks together, I use to change my resin every 2 months, now its every 8 months or so.
My tap water is 72 tds.
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I haven't a clue :P Before I connected the 2 di tanks together, I use to change my resin every 2 months, now its every 8 months or so.
My tap water is 72 tds.
72 tds your lucky mine is 472 :(
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willamix thanks for the info thats good to know i think il have to try that ;)
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If you go on http://www.netpets.com/fish/reference/srab/srab4.html and read the chapters on small reef aquarium there it will give you an insight into what you can do with filtering your water before putting it through your DI.
Very interesting.
pur
Sorry, one forwardslash short
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To clean mixed bed resin first you would need to seperate the positive ion beads from the negative ion beads, two resins are used mixed, they can also be regenerated after exhaustion by separating them hydraulically
into two layers with an upward flow of water, (their densities are slightly different), regenerating each layer separately and
then, after rinsing, remixing the two materials by bubbling air through them upwards.
Here is some tecnical details of how it should be carried out:-
1. Backwashing: The resin bed is loosened up by an upward flow of water. Any channelling or air bubbles are removed
together with any suspended matter which may have accumulated. The resin is then allowed to settle.
2. Regeneration: The necessary regenerant solution is passed through the resin bed with the flow rate recommended.
3. Rinse: Excess regenerant and unwanted impurities, removed from the resin by the regenerant, are removed.
4. Treatment run (Exhaustion step): Usually carried out in the same direction of flow as the regeneration and rinse,
but in certain cases counter-current operation may be desirable.
Its much cheaper buy new resin unless you are regenerating many tons at a time and have a laboritory
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If you go on http://www.netpets.com/fish/reference/srab.srab4.html and raed the chapters on small reef aquarium there it will give you an insight into what you can do with filtering your water before putting it through your DI.
Very interesting.
pur
that link does not work, and not advised to click on
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To clean mixed bed resin first you would need to seperate the positive ion beads from the negative ion beads, two resins are used mixed, they can also be regenerated after exhaustion by separating them hydraulically
into two layers with an upward flow of water, (their densities are slightly different), regenerating each layer separately and
then, after rinsing, remixing the two materials by bubbling air through them upwards.
Here is some tecnical details of how it should be carried out:-
1. Backwashing: The resin bed is loosened up by an upward flow of water. Any channelling or air bubbles are removed
together with any suspended matter which may have accumulated. The resin is then allowed to settle.
2. Regeneration: The necessary regenerant solution is passed through the resin bed with the flow rate recommended.
3. Rinse: Excess regenerant and unwanted impurities, removed from the resin by the regenerant, are removed.
4. Treatment run (Exhaustion step): Usually carried out in the same direction of flow as the regeneration and rinse,
but in certain cases counter-current operation may be desirable.
Its much cheaper buy new resin unless you are regenerating many tons at a time and have a laboritory
That sounds to me like to much time for the cost of resin in first place, Just buy the resin you have to have reciepts at the end of the year with all the money you earn from using it
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Sorry there men ( and women ) one forward slash short, it works now.
pur
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Why is no one using two single resin DI units suerly this would be very easy to back wash with already DI'd water and make re genarating very simple.
Or am I missing something????
pur
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Why is no one using two single resin DI units suerly this would be very easy to back wash with already DI'd water and make re genarating very simple.
Or am I missing something
This is like saying if I tip water into my whiskey do I get twice as much whiskey :)
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can see what people are saying resin is expensive i bought a bag today. never heard of the 2 di vessel trick though.
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If you read the net pets article it says to always run the water through the Cation first and then the Anion, it's just a thought.
pur
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Just to add my bit , for a long time now i have been saving myself a small fortune on resin , i am DI only with a TDS of about 100 , i used to buy a bag every month , i now get one every 3 months , and the sophisticated piece of equipment i use cost me £3.49 !
All that is needed is a 10 litre swing bin and two elbows .
The water is constantly fed from bottem left of bin to top right of bin , then into holding tank , the slower you can get the flow the longer the resin will last.
1st Pic , the bin , 2nd Pic , the flow rate .
Rich P @ F
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That's what is implied in the netpets article, it even advises you on the flow rate per cubic foot of resin . Also says it's better to filter your water before DI and tell's you what to use, it's wrth the time it takes you to read it.
pur
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Pur, Ydach chi'n siarad Cymraeg?
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Whats that in english lingo ?
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Do you speak Welsh?
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Not a word boyo !
Rich P @ F
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Just asking Pur, as he has Welsh at the botom of his messages, Luke
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My fault , stoopid Plymouth boy , i see that now !
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:) :)
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Yndw, dwi yn rhygl yng nghymraeg.
pur
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Da iwan, Cymraeg iath cyntaf?
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Is it possible to send PM on this site as I don't want to highjack the thread by going off some where else .
There must be quite a few of us on here that can speak several languages.
Ia Cymraeg iaith gyntaf.
pur
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Unfortunately there is no PM facility on this site. Don't worry though I will throw in the odd sentence here and there for us!! Dwi meddwl mae na rhai bobol ar y forum sydd gallu siarad y iath pur!!
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I haven't a clue :P Before I connected the 2 di tanks together, I use to change my resin every 2 months, now its every 8 months or so.
My tap water is 72 tds.
72 tds your lucky mine is 472 :(
mine is 030ppm :P
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matthew i notice your tds has risen from 20ppm to 30ppm, funny thing i noticed in winter it rises, mines was 28ish in the summer, now its 42ish, very strange,