Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Jays Window Cleaning on November 15, 2009, 03:06:41 pm
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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?
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Have you checked what its coming out of the RO at before the DI mate?
Also was the RO new?
Dean
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Cheers for quick reply dean. yes the ro is new . Tds from ro befor di is 078 . any help would be great .
jay
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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.
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cheers crave pressure is good really mate. Im gonna see what happens if i change tap. Will 003 clean windows ok ?
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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
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nice one guys thanks for your help im on to it now i think it may be the water pressure.
cheers jay
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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
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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
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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
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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
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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
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Make sure you have the waste and pure the correct way round - my first RO i was pumping waste into the di!!! :-[
Darran
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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.
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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
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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
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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
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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
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Have a look at this pick, if your set up is exactly the same then its plumbed wrong.
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roger that matt , gimme 10 and i'll send it by phone
tom
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ok mate, its very important that the connections are correct, as you can see in the pic the waste pipe is on the upper outlet and should be on the lower outlet.
Matt
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yeah they're correct way round
tom
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were are you running your water from? outside tap?
jay
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yeah, think the pressure is a problem ?
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yeah, think the pressure is a problem ?
Tom I'll ring you in 5 mins mate. I got you pic.
the pipe going into the DI is it coming from the central connection on the bottom membrane?
Matt
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think mats the man to speak to. by the post i have read on here he is very help ful.
Hope you get it sorted .
jay
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yeah he's a top man, looks like my ro unit is knackered, water coming out of it is 107 on the tds, gonna call pure freedom tomorrow
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What size is your ro and when did you order it ? as i only got mine thurs morning from pure freedom.
jay
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Tom I have just thought, can you disconnect the water supply and unscrew the caps of the RO membranes, check that there's a membrane in each of membranes cases.
Matt
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im a bit concerned as i have read the instruction installed it. However the instruction say its supose to be easy well my tds keeps going up and down now im well baffeled now this thing is starting to do my head in. Are you using a hand held tds meter or inline? Could it be the tds meter.?
Im using a hand held.
jay
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What size is your ro and when did you order it ? as i only got mine thurs morning from pure freedom.
jay
It might even be a bad batch of membranes.
But Tom just check that they have put both membranes in.
Matt
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ok gimme 10 mins
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Jay I have spoken to Tom and the waste reading compared to the tap reading is correct.
Matt
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yeah jay its handheld tds, 200 gpd ro unit, thing is i had pure water earlier today but its gone now
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Would i be right in saying the first 250 litres or whatever should go straight down the drain, as the reading is usually quite high for a while? Or shall i just keep out of it? :)
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Tom like I said on the phone mate, it was pure because the resin was doing most of the work, and now its been depleted the TDS reading is getting higher.
Pole2pole you are meant to flush it for a minimum of 2 hours.
IMO Toms membranes seems to be knackered or one maybe missing.
Matt
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just checked matt, both membranes in and fitted, not a happy bunny
tom
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can you send me the pick of the membrane?
they might of put them in incorrectly.
Matt
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ha ha roger that gimme a few
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ok mate.
Matt
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Merlins seem so straightforward compared to this! ::)
Darran
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mat how should the membranes be ? they all look the same to me ? sorry mate im using your help too.
cheers jay
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what should the tds be after the ro ? should it be about 14? this is what i had earlier now its 78 .
jay
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You have a rubber seal near the top of the membrane and a plastic tube at the top, this should be pointing to the end with the screw on cap, as the water goes into the middle of the membrane.
Matt
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what should the tds be after the ro ? should it be about 14? this is what i had earlier now its 78 .
jay
It should be between 010 and 020, depending on water pressure and size of the RO etc.
Matt
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got that pic matt ? looks like they're in correctly
tom
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jay sounds like we've got similar problem
tom
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all sounds and looks right. do you think i may need to flush it again? i flushed it for 2 half hours when i first set it up.
jay
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all sounds and looks right. do you think i may need to flush it again? i flushed it for 2 half hours when i first set it up.
jay
Jay any chance you could post a pic on here of your RO setup?
Matt
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yes tom im pulling my hair out trying to sort this.
jay
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i will try mat . give me ten
jay
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jay i flushed mine for another 3 hours today, no difference in fact its worse !!! gonna give pure freedom a broadside tomorrow !!
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Tom was the membrane positioned correctly?
The rubber seal and plastic tube at the end should be pointing towards the screw on cap end of the casing.
Matt
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how do you up load pics on here ? got pic on laptop now.
jay
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when you reply click on additional options and add it like you would for an email.
Matt
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yeah matt, they're the right way in
tom
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Tom the only thing I can think of with your RO mate is that you have dud membranes in there.
Matt
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roger that, think jay has the same problem
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heres the pics matt
jay
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who is this roger, cant find any posts from him ;D
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funny
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only just sus out how to put pics on here.
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tomlions hows your luck you given up on it yet? I thought wfp was gonna be straight forward (not knocking it i aint even tried it yet) but so far it been a head ache. lol
jay
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tomlions hows your luck you given up on it yet? I thought wfp was gonna be straight forward (not knocking it i aint even tried it yet) but so far it been a head ache. lol
jay
It should be straight forward Jay.
I think you guys may have a bad batch of membranes. IMO
Jay your setup looks fine mate.
Matt
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mat tds from the ro is now 24 i opened all the cases and screwed them all back up again .
i think im getting there.
jay
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given up for tonight jay, not happy at all, persuaded the mrs to let me spend the money for trad stuff, tried it realised how dangerous it can be then talked her into the wfp stuff and it's been a nightmare since, but hey it'll come good it bloody has to !!!
tom
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tomlions open all the cases then do them all back up again. It worked for me mate. Maybe somewere there is a leak in from the waste.
jay
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nice one jay, take them off and and do them up again yeah ? i'll try in the morning, been soaked too many times today
tom
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given up for tonight jay, not happy at all, persuaded the mrs to let me spend the money for trad stuff, tried it realised how dangerous it can be then talked her into the wfp stuff and it's been a nightmare since, but hey it'll come good it bloody has to !!!
tom
yes you both will get it sorted , no doubt, but keep on with the trad too tom, it gets less scarey after about 6 months
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roger that cornelius, old school is good, what i mean is its just a bit too tempting to lean out just a bit more on ladders, i'm gonna do wfp upstairs and trad downstairs.
tom
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Hi out of interest how much water do you get in,say,24 hours from this size of setup?
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It takes me about 8half hours to fill 300ltrs coming straight off the mains no pump.
jay
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Thats a good rate Jay. what do you have? 300GPD or 450GPD?
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300gpd pressure is good from the mains.
Im starting to see the light. Up till now going wfp has been a head ache.
Should have asked more questions on here earlier. But ol no i try it myself lol
jay
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Jay do you know if Tom got his RO sorted?
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I dunno mate not sure if hes been on here today.
jay
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I just checked my email he has a pressure problem, so he has ordered a booster pump.
Matt
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least hes got it sorted. Cheers for the email matt you are a great help.
jay