[dave0123]

how long should my resin last?

coming out of my ro its around 21 22 and my TDS has just gone to 001 from the DI tank.

I have 11lit DI vessel bought 2months ago with resin in so when i recived it was just ready to connect up. i bought it about 8th jan and prob got it working i dont no erm... a week or too later.

seems to be used very fast to me i havent even gone fully wfp yet proberly only made 3000 - 5000 liters at most 

[DASERVICES]

Dave,

I have just done a rough calculation but don't take it as fact but it is near enough.

For 11 litres I get 10 - 12,000 litres with TDS 34.
So if you used quality virgin Tulsion resin you should get around 11 - 13,000 litres. This also depends that you take care of your resin.


Less quality resin you will get half of that, so it depends what resin you use.

Doug

[windowwashers]

how long should my resin last?

coming out of my ro its around 21 22 and my TDS has just gone to 001 from the DI tank.

I have 11lit DI vessel bought 2months ago with resin in so when i recived it was just ready to connect up. i bought it about 8th jan and prob got it working i dont no erm... a week or too later.

seems to be used very fast to me i havent even gone fully wfp yet proberly only made 3000 - 5000 liters at most 

dave do you have to di vessals ? if not I would get another as you will be chucking money down the drain.

I was changing resin every 2 weeks with one di now it is every couple of months
Ian

[dave0123]

Hi,

thanks for the replies i couldnt get on here last night.

well my TDS is 24-25 after RO and actully my resin is only a month old because it has just come round to the first house i cleaned with WFP again. through the month i have only cleaned around 20 houses with it! probs even less.

dai how do you mean by look after your resin? i dont no what resin is inside because i bought the vessel with the resin allready inside (ready to go)

WW no i dont have to vessel's havent really got space might buy another son when i have more cash around.

[Mike 108]

Someone on the forum (High Reach, I think) keeps recommending Dowex resin.

Several other named brands have also been regularly mentioned.

My bag of resin has 'Rohm and Haas Amberlite' stamped on the bag. Is that any good?

(I can't remember where it came from)

Thanks

Mike

[DASERVICES]

Dave will send you a mail 

Mike have sold the resin in your area so will await feed back!!!!


Doug

[L.J.Thorpe]

the one tip that has made my resin last longer is to disconnect the di when you backflush the ro and to run several ltrs of waste out before re connecting to fill van/static.....obvious once someone points it out  :,also i dont take any notice of my inline tds as it always gives a lower reading than hand held...so i go by that

[Spursboy1972]

Why run 2 DI's? or is that a silly question?

If so how do you connect 2 of them up.

[dave0123]

Dai,

If you were talking to me about sending me mail could you please send it again please as my inbox was full jus cleared it out thanks.

the one tip that has made my resin last longer is to disconnect the di when you backflush the ro and to run several ltrs of waste out before re connecting to fill van/static.....obvious once someone points it out  ,also i dont take any notice of my inline tds as it always gives a lower reading than hand held...so i go by that

are you spose to run some water to drain before making your water? because i usesd to just turn tap on and away i go each time and flushed every now and then.  i just flushed the ro for a little bit then insdead of running it to di ran it 2 drain and tested the tds started 50 odd and after about an hour or so its come down so 35 odd and now 24

[[GQC] Tim]

You are supposed to run water through your new membranes for 2hrs non flush setting, to get rid of the chemicals used to preserve the membranes.

[dave0123]

You are supposed to run water through your new membranes for 2hrs non flush setting, to get rid of the chemicals used to preserve the membranes.

thats on first ever use of the RO isnt it? which i done at the time without the DI connected for around 3-4 hours

[[GQC] Tim]

Yes, that's right.

[macmac]

Why run 2 DI's? or is that a silly question?

If so how do you connect 2 of them up.

In short-
When the tds starts to rise in DI- 1 you then use IT to pre-filter DI- 2 (which is new resin), so DI- 2 is now only being fed with an input tds of 001/002 etc & you just keep the cycle going instead of throwing resin away thats only reading 001ppm.

It's VERY important to use a good quality resin when running twin DI's as this will determine how effective the system is. For me, dowex does the job- free next day delivery from wintecs.   Although i'm tempted to try some tulsion from DA. SERVICES.

As for connection- a short piece of hose with female connectors between the two vessels.

Tony

[[GQC] Tim]

Thanks mac, that's quite clear.

So basically, the moment you do get a higher tds from the second DI, then you need to change both? Or give them both a good shake, and see how far that goes? 

You fill the DI canisters 3/4th full right?

[Peter Fogwill]

No you would just change the resin in the first one, as the second one will still have some life left in it.

Peter

[[GQC] Tim]

No you would just change the resin in the first one, as the second one will still have some life left in it.

Peter

Ah, and then ofcourse, make the second the first one, swap them around. Nice.

Thanks Peter.

[macmac]

No you would just change the resin in the first one, as the second one will still have some life left in it.

Peter

Ah, and then ofcourse, make the second the first one, swap them around. Nice.

Thanks Peter.

That's it, & yes only fill 3/4 with resin & give a good shake when tds starts to rise.

Tony

[L.J.Thorpe]

how long should my resin last?

coming out of my ro its around 21 22 and my TDS has just gone to 001 from the DI tank.

thats high out the ro , whats it in at

[dave0123]

its actully 24 it comes out the Ro thorpe and goin in at the moment lately is 412

[macmac]

My tap tds has recently dropped from 96ppm to 74ppm. 2.5 years ago it was 106ppm so if this trend continues in about 5 years i'll be filling straight from tap

Tony