[Jays Window Cleaning]

Hi guys ive finaly gone over to water  fed set up my own trolly system well impressed with it. I just wanted to know really why i cant get my water tds down to 000 its going in at 353 and coming out at 003 im useing a 300gpd with di brought from pure freedom. Its bran new ive flushed it for 2half hours should it be flushed longer?

[Dean Taberner]

Have you checked what its coming out of the RO at before the DI mate?

Also was the RO new?

Dean

[Jays Window Cleaning]

Cheers for quick reply dean.  yes the ro is new . Tds from ro befor di is 078 . any help would be great .

jay

[krave]

Do you have good water pressure, From what I have read low pressure will make the Ro underperform. And 78 after seems way to high to be honest, will use resi rather quickly.

[Jays Window Cleaning]

cheers crave pressure is good really mate. Im gonna see what happens if i change tap. Will 003 clean windows ok ?

[Smudger]

78 is too high from RO

yes you can do windows with 003 -  i have had to do them with 008 and not had problem

Darran

[Jays Window Cleaning]

nice one guys thanks for your help im on to it now i think it may be the water pressure.

cheers jay

[tomlions]

hi jay, spooky question !! i'v just set up my ro/desin system yesterday and i'm getting a lower tds reading when in the flushing setting !! its coming out at 2 but when on the normal setting its 13 !!maybe i need to run it longer

tom

[Jays Window Cleaning]

tom yeah could well be. Ive been told pressure has alot to do with it. im gonna change to a main tap with more pressure then flush it again ho;pefully that will sort it.

jay

[John Hewitt]

Is the membrane fully inserted. It is not unusual for newbies to think it is in because it becomes tight. Once the first O ring locates then it needs a firm push to locate the second O ring. If the membrane isn't fully home then the waste under pressure can get past the O rings into the pure line. Even a very small leak will shove the TDS up.
Have a look at my RO info page  www.johnhewitt.com/roinfo.htm

[John Hewitt]

Me again , a bit more to add. With a mains TDS of 353 I would expect a reading after the RO to be in the mid to low teens. I always recomend buyers to make sure the RO reading is low before connecting the DI as if you have the problem in my previous answer all you are doing is depleting the resin. How large is your DI because if it is only a 10" filter you may have already depleted it. I have a mains tds of around 300, coming from the RO I get around 13 and with a 10" DI new virgin resin can last over 2 months before the TDS starts to rise beyond 0.00

[Jays Window Cleaning]

Thank you for the info john hewit. When i flush the system do i need to disconnect the di?
Yes it is a 10'' di so i guess its proply had it now . I am still not quite understanding what you mean in your first post on here were you speak about the first mebrane then the second. So more help would be very appreicated. Thank you.

cheers jay

jay

[Smudger]

Make sure you have the waste and pure the correct way round -  my first RO i was pumping waste into the di!!!

Darran

[Ian Lancaster]

Something else that everyone seems to overlook is accuracy of TDS meters.  In line ones are notoriously inaccurate, and even the hand held can be suspect.  I check mine every couple of months and about every six months I need to re-calibrate.

[tomlions]

darran does the waste line have the flushing valve on it ? i'v got the other one going in to my di, is that right ?

tom

[Jays Window Cleaning]

Tomlions thats right mate. Tape is on the waste pipe.
Ive managed to sus it out the presure from my sink tap was not not enough connected it to the mains
and my tds before i go in ro is 353 after ro 014 after di 000.

jay

[tomlions]

cheers jay, if thats the case i've got a problem, its all plumbed up right, tds on tap water is 399, after ro 85, after di 32 !!! please help spent a lot of money and not impressed

tom

[Sapphire Window Cleaning]

Tom any chance you can post a picture of the RO unit?
Trippy had the same problem earlier this year and I helped him out.

Matt

[Sapphire Window Cleaning]

Have a look at this pick, if your set up is exactly the same then its plumbed wrong.

[tomlions]

roger that matt , gimme 10 and i'll send it by phone

tom