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Aiden Smith

  • Posts: 44
DI position
« on: March 05, 2019, 09:20:11 pm »
Can anyone help me please. I have my RO4040 set up and am getting 150 after the RO . Do I put the Di vessel straight after the RO or do I put the water in the tank and then run it through the DI after the pump. I am struggling to get my head around this. Any advice will be greatly appreciated.
Thanks Aiden

Smudger

  • Posts: 13165
Re: DI position
« Reply #1 on: March 05, 2019, 09:28:05 pm »
150 ?

I think you have a big problem right there


Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

John Mart

Re: DI position
« Reply #2 on: March 05, 2019, 09:34:41 pm »
What is it before RO? Straight out of the tap? Your RO should remove at least 95% of impurities.

P @ F

  • Posts: 6312
Re: DI position
« Reply #3 on: March 05, 2019, 09:35:12 pm »
Me thinks that your RO is poorly !
Either that or the tap TDS is around 3000 ppm !
What is the tap TDS ?
I'm so lazy I'm getting tired of it !

Aiden Smith

  • Posts: 44
Re: DI position
« Reply #4 on: March 05, 2019, 09:39:12 pm »
Thanks for the replies guys.
Tap tds is roughly 255.
If it is poorly where do I go from hear

P @ F

  • Posts: 6312
Re: DI position
« Reply #5 on: March 05, 2019, 09:40:41 pm »
Was it new to you or used ?
I'm so lazy I'm getting tired of it !

Midge

  • Posts: 17
Re: DI position
« Reply #6 on: March 05, 2019, 09:42:31 pm »
Buy a new ro

Ooooooog

  • Posts: 1083
Re: DI position
« Reply #7 on: March 05, 2019, 09:46:38 pm »
Whereabouts are you?

Start with getting a good TDS meter.

P @ F

  • Posts: 6312
Re: DI position
« Reply #8 on: March 05, 2019, 09:47:43 pm »
You should be looking at 015 from the RO if good .
Have you used one before , got any pics of the set up ?
I'm so lazy I'm getting tired of it !

Aiden Smith

  • Posts: 44
Re: DI position
« Reply #9 on: March 05, 2019, 09:48:58 pm »
I bought it second hand off eBay. Would I have to strip the RO down and rebuild it

P @ F

  • Posts: 6312
Re: DI position
« Reply #10 on: March 05, 2019, 09:52:00 pm »
I would say you have been had over and have been sold a knackered membrane by the looks of it .
It’s not set to flush is it ?
I'm so lazy I'm getting tired of it !

Aiden Smith

  • Posts: 44
Re: DI position
« Reply #11 on: March 05, 2019, 09:59:31 pm »
Ok
Well another lesson learnt I guess. When I removed it what Am I looking for so I now what to expect. Am I right in thinking that the canister the filter sits in will be fine or should I be looking for any problems

Stoots

  • Posts: 5986
Re: DI position
« Reply #12 on: March 05, 2019, 10:08:25 pm »
Check the ratio of pure/waste is set correctly....you could have it on flush as said above.

Sounds like membrane is knackered though, that's  best part of £200 to cheer you up  ;D

P @ F

  • Posts: 6312
Re: DI position
« Reply #13 on: March 05, 2019, 10:16:11 pm »
Got anybody near you that can take a look before you bin it  ?
I'm so lazy I'm getting tired of it !

Smudger

  • Posts: 13165
Re: DI position
« Reply #14 on: March 05, 2019, 10:26:29 pm »
if you got it second hand did you collect it or was it posted ? if posted did the ro membrane have any wrapping around it to keep from drying out

if you've got a link to the eBay sale we might be able to help by seeing what you brought

Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

Aiden Smith

  • Posts: 44
Re: DI position
« Reply #15 on: March 05, 2019, 10:34:41 pm »
Thanks to everyone with replies. I will post a photo of the set up tomorrow and go from there

Aiden Smith

  • Posts: 44
Re: DI position
« Reply #16 on: March 05, 2019, 10:36:25 pm »
Darren. It came assembled. Membrane in canister already

Spruce

  • Posts: 8345
Re: DI position
« Reply #17 on: March 06, 2019, 07:16:42 am »
If the tds meter is reading 255 (roughly?) then its probably reading the output from the r/o correctly.

As per Gomo; what it your pure to waste ratio when producing water? ( A very important question. I saw one person completely shut off the waste water tap which will damage the membrane and give you a high pure tds reading - hence the question.)

A quality Axeon membrane HF5 (water pressure between 50 and 100psi) will cost you £257.00 + VAT from GAPS water.
http://www.gapswater.co.uk/acatalog/RO_Ultratech_Membranes.html

There are some cheap membranes around but with very poor performance which, imho, aren't suitable for window cleaning applications.

You should also replace your prefilters which you should do regularily depending on your water useage.

DI vessel.

You can put it either after your r/o or after your pump but before your hose reel on the van.

We have ours after r/o so the water that goes into out storage tank is pure. Doing it this way saves space in the van and allows several vans to fill up with water without each van having to carry a di vessel.



Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

Aiden Smith

  • Posts: 44
Re: DI position
« Reply #18 on: March 06, 2019, 07:31:30 am »
Thanks for the reply Spruce
I will have another play around this afternoon and go from there

NWH

  • Posts: 16952
Re: DI position
« Reply #19 on: March 06, 2019, 10:07:48 am »
Are you using pre filters if you were I would say you’re RO was knackered.