Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: L.Doubtfire - The Blade Runner on March 29, 2006, 04:08:22 pm
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If I wanted to start producing pure water using the D.I. method,
Can members tell me what equipment I would need,and also the
Possible cost/ecomomy valuation.Also approx. how many liters
Of pure water would be produced from a 25 liter bag of resin.
My tap water reading is 120 p.p.m. Thanks for replies.
Lewis Doubtfire.
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Hi Lewis.
At that TDS eading an RO would probably be a worthwhile investment. But thats no your question.
You would only need a decent sized DI vessel for say around £60 to 70. A bag of resin and a bit of hose with connections.
There is a formula for working out how much water you will get from a 25ltr bag of resin. You divide 500000 by your TDS in and that will give you your pure water out figure. So at 120PPM you will get around 4166 ltrs of pure water per 25 ltr bag.
Hope this helps
Andrew
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You could use extra tanks with resin that takes the ppm down to 30.
That will leanthen the life of the resin
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would forget the formula as the desolved solids vary from area to area.
I get 3 times the amount out of my resin than the calculations state.
For Di only all you need is a van tank fill with tap water then feed it through a pump to the di vessil full of resin then to the hose.
I get at least 3 months out of 18 litres of resin, that works out about
£60.00
My tds is 73
Dave
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Thanks Andrew,your very helpful.At present I`ve an R.O. unit,but as 500 liters
Seems to me ages these days mainly because I`ve gone back to `LedgerMating`
And Ettore `Back-Flipping`,if and when anything goes wrong with my R.O. would
I be better trying a D.I. set-up for producing pure water.I`m pushing 60,so I aint a
Young kid anymore.These new R.O. units by Ionic are mega-bucks.There`s such
A lot of waste water with normal ones.See how it goes anyways.My tap water used
To be around 260 p.p.m. but after water work board had done some stuff its around
120 possibly less.
Lewis Doubtfire.
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DAVE, how many ltrs, you only mentioned 3 months. cheers. macc.
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Sorry i gave up counting ages ago, i use approx 1800 litres a week.
I know i got at least double the formula for working out useage.
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YOU WOULD WOULDNT YOU ;D
GAZA
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Lewis ,you could save a lot using the rain water out of a but and pump that through your resin. Water was coming off my roof yesterday at 4 ppm TDS. You could get away with using that untreated. DAI
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dear david your not often wrong ,but your wrong this time.you need to polish the water after going through the 1st di vessel into the storage tank its then pumped out through the polishing tank,that way youve more control over the ammount of resin you use.
If you only use 1 vessel you would have no chance of doing it if you lived in a hard water area,but you live in a soft water area I hear you say,so you would still get more from your resin using two tanks cus once your resin is above 015 your throwing it away :P
gaza
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DAI: It states when using an ro the water must be drinkable before putting it through an ro,dont think rain water is drinkable when stored in a water but?
gaza
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Gaz, I allways use two DI vessels untill I change the resin in one, and both are turning water out at 0 ppm, Then I just use 1 untill the TDS starts to go up.
Now back to what I was saying. If the water comes off the roof at 4ppm, and I collect that water in a rain but, I have a but full of 4ppm TDS water. If I was to then pump this rain water through a DI vessel, the Di has only to remove 4ppm, not 52 ppm from my tap. Some guys using a Merlin RO unit are lucky if they get 4ppm water out of it.
Also some guys are quite happy to use 4 ppm TDS water to clean windows with.
What's the difference between 4ppm TDS water out of a DI vessel, and 4ppm rainwater? I may be missing something here, but 4ppm is 4 ppm. Dai
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Totally agree with you Dai,but just reading some fancy word meaning tap water
somewhere the other night,tap water and a word meaniing non pallitable cannnott be used. Maybe were both missing something
gaza
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Gaza
I am not wrong , i have been using this method for months and months and it WORKS!!.
You only need one di vessil and that is it.
When my tds starts rising i put a fresh di vessil after the diminishing one, but this is somewhat a waste of time because once it starts rising it goes up rapid and can start contaminating your fresh di vessil with an even higher tds reading than your tap water.
So you have to keep an eye on it you will probably get 3 weeks max.
There is a name for it but i cant remember off hand.
Some companies would have you believe you need loads of different vessils in a di system but they have to justify there prices ,so they make it look more complicated than it is.
Some systems have 2 types of resin ,one for positive and one for negative anions.
What system do you use ? are you an Ro man or di
Dave
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cheers dave
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I checked my TDS tap water last night 57.
After going through RO unit before DI vessel it was 001.
Gutted :P
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David :tip 1[ DONT TRY A TEACH A MASTER HOW TO SUCK EGGS MONTHS /MONTHS
WAIT TILL YOU CAN SAY YEARS /YEARS AND EVEN MORE YEARS WFP
LESSON 2/. WERE YOU ARE GOING WRONG
PUT A VESSEL AFTER THE DIMINISHED ONE [WHY]
YOU WILL ONLY GIVE YOURSELF PROBLEMS
MASTER SAYS PUT IT IN FRONT OF YOUR SPENT RESIN
AND LEAVE YOUR SPENT RESIN TO POLISH
WHY THROW GOOD RESIN AFTER BAD ;D [TO COIN A PHRASE]
TRY USING ONE VESSEL ON 265TDS MAINS AND YOU END UP WITH A HIGH TDS ON THE OTHER SIDE NOW IF YOU USE YOUR SPENT RESIN TO POLISH YOUR UP TO 000TDS
IT WILL SAVE YOU SQUIDS IIN RESIIN REPLACEMENT EVEN AT 72 TDS?[THINK THATS WHAT YOU SAID YOURS WAS]
NOW TO ADDRESS WHAT TYPE OF SYSTEM I GOT ,WHIICH SYSTEM WOULD YOU LIKE TO KNOW ABOUT?
THE RO_MAN RO SYSTEM
THE TWO VESSEL DI SYSTEM
OR THE £3000 ELGA SYSTEM WIITH ANION AND CATION RECHARGEABLE RESINS
WHICH PRODUCES 6,000 LITRES OF LAB EQUIVELANT WATER BEFORE YOU START TO GET TO 000 TDS LEVEL THEN 6,000 LITRES + AT 000TDS BEFORE REGHARGING
WITH ACIDS AND THE LIKE.
GAZA ;)
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Gaz
Speak English man
Have you been drinking
Well it works for me ,very well actually.
Have we got any arbitrators here to say who is right lol
Dave
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LESSON 2/. WERE YOU ARE GOING WRONG
PUT A VESSEL AFTER THE DIMINISHED ONE [WHY]
YOU WILL ONLY GIVE YOURSELF PROBLEMS
MASTER SAYS PUT IT IN FRONT OF YOUR SPENT RESIN
AND LEAVE YOUR SPENT RESIN TO POLISH
WHY THROW GOOD RESIN AFTER BAD [TO COIN A PHRASE]
What ?
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It might be a stupid question but does it matter if your set up goes
Tank - Resin - Pump ??
I'm looking at putting inline filters between the tank and the resin and between the resin and the pump
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Gaza
I am not wrong , i have been using this method for months and months and it WORKS!!.
You only need one di vessil and that is it.
When my tds starts rising i put a fresh di vessil after the diminishing one, but this is somewhat a waste of time because once it starts rising it goes up rapid and can start contaminating your fresh di vessil with an even higher tds reading than your tap water.
So you have to keep an eye on it you will probably get 3 weeks max.
There is a name for it but i cant remember off hand.
Some companies would have you believe you need loads of different vessils in a di system but they have to justify there prices ,so they make it look more complicated than it is.
Some systems have 2 types of resin ,one for positive and one for negative anions.
What system do you use ? are you an Ro man or di
Dave
DO YOU 1 OR 2 DI VESSELS?
YOU WILL BE USING THE MIXED BED RESIN IF YOU REPLACE THE RESIN THEN DAVE?
quote:put the good resin after the deminished resin are you using 1/2 vessels?
you should put the good resin infront off the bad resin and when you start getting
above 000tds you throw the bad resin away. but you cannot do this if you use 1 vessel as stated.
Ill have 1/2 ounce of what your smoking :-X
You only use seperate resins if you have the system that can recharge and flush out the crud from the resin beads with acids[like Ive got] £3,000 to you DAVID
DAVID CHECK DAIS LAST POSTING ONN 2 DI VESSEL USAGE
GAZA
JUDGES WELCOME TO COMMENT
MOD V PRO :-X ONLY JOKING DAVID
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It might be a stupid question but does it matter if your set up goes
Tank - Resin - Pump ??
I'm looking at putting inline filters between the tank and the resin and between the resin and the pump
I USE RESIN - TANK= PUMP -RESIN [POLISH] UP POLE
IN LINE FILTERS ARNT NESS BUT GOOD IDEA
GAZA
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I use tank -pump-resin{does all the work} then up pole
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I use tank -pump-resin{does all the work} then up pole
are so now ur using only one vessel ???
but if you used two [think of the money you would save]
cus the old resinn would still have shelf life.
but your tds is only 73
what would you do if it was 276 + 1 vessel would not be enough
you would be throwing resin away that could stiill be off use.
christ driven into a cul d sac with this subject ;D
gaza
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I put a second resin in front of the fresh one when it strarts depleting but it soon rises above 73 making it useless.
Perhaps i could sell it when it reaches 70 to someone in a high tds area.
Dave
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david why not put the delapidated vessel after the good resin to polish the water before going up the pole?
look
new resin storage tank
in vessel = = 2nd di
vessel NEARLY =PUMP = =UP POLE
000tds water for taking a few tds
out[polishing]
l
the first resin vessel can now work longer cus its got a back up, to take out the little bit it carnt remove so you get the most out of your resin ok
gaza[only trying to help you save DAVE]
GAZA
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Gaza , thats what i do ...
RESIN/HOLDING TANK/VAN TANK/PUMP/RESIN/POLE.
THIS IS WHAT I HAVE AT HOME , DI ONLY , 100 TDS .
P @ F
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p@f is that spent resin you using in that black box? good idea, believe i read sonewhwere someone was doing it.
does it work well enough to warrant it?
I ro my water 1st get it down to 001 from 256 been like this for 15,000 litres on 1 litre of resin on ro [wow] am I impressed with my ro ;D
could trickle the water into my spent resin to produce 000 tds for a lot longer
I suppose.
when the ro gives up the ghost still run it through the spent resin in to my 1000litre IBC THEN TO MY TANK IN THE VAN AND THROUGH MY TWO RESIN VESSELS
and get the best of spent resin +my new resin save pounds me thinks ;D
gaza
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Gaza
Now you have just said it you are not D.i only ,you have got an ro.
Dave
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Stop it children!
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Gaza , i used to use my spent resin in the black box , i just whack new resin in it now , it lasts way longer than just using it in the van mount , a bag of resin used to last me 1 month , the last bag i bought since using my filter at home was 23/09/05 , mind you i did have a bit of the previous bag left , so i reckon a bag is now lasting me around 4 months , not bad for DI only is it !
Rich P @ F