Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: cat9921 on February 28, 2009, 05:55:22 pm
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Recently a good friend of mine asked if he could borrow My DI to check something out on his RO..
I keep reading about people that say the TDS can go up high, as long as it stays below 015 ::)
So not having my DI I tried it on my own windows ::) My TDS was 007 and the windows wear perfect ;)
Now I know its still best to keep it as low as possible, But if my RO brings it down low enough and it does I see No reason not to have a DI :o
Last week I cleaned a whole round with 007 TDS water in direct sunlight and not one window Spotted :D
I know a lot of you are going to give me stick on this, But when I read comments about peoples TDS that are 002 and people saying its too high ITS not
Please go easy on criticism I feeling tender today ;D
Adders
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i did the same the resin was spent.
cleaned for two days at 012 results seemed fine but replaced resin now and clean at 000 which is how it should be ;)
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my first RO used to give out 006 - 007 TDS, after the first lot of DI went i never replaced it for 2 years
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Thats right! when my di runs out in about a month we wont be wasting any more money on it, my ro prduces at 1-3 ppm, as long as there is enough pressure an ro is all you need. not only that, send di water away to be analysed, you wont be happy with the result, there are trace elements of all sorts of nasty things in it that you really dont want building up in your body over many years. ro water has none of these things.
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Have not used resin for 5 years.
If you can produce water below 010 parts pure then you just don't need it.
What a load of crap 000. You have been sold the suppliers dream. At £80.00 a bag I would tell you you needed it as well.
Rob ;D
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Thats right! when my di runs out in about a month we wont be wasting any more money on it, my ro prduces at 1-3 ppm, as long as there is enough pressure an ro is all you need. not only that, send di water away to be analysed, you wont be happy with the result, there are trace elements of all sorts of nasty things in it that you really dont want building up in your body over many years. ro water has none of these things.
Your ro gets it down to 1-3ppm what membrane is in it Lee ?
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Have not used resin for 5 years.
If you can produce water below 010 parts pure then you just don't need it.
What a load of crap 000. You have been sold the suppliers dream. At £80.00 a bag I would tell you you needed it as well.
Rob ;D
You could of told me this 3 years ago Rob ;D Good post
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Thats right! when my di runs out in about a month we wont be wasting any more money on it, my ro prduces at 1-3 ppm, as long as there is enough pressure an ro is all you need. not only that, send di water away to be analysed, you wont be happy with the result, there are trace elements of all sorts of nasty things in it that you really dont want building up in your body over many years. ro water has none of these things.
Your ro gets it down to 1-3ppm what membrane is in it Lee ?
Twin 40 40 boosted to 100psi with about 30% waste
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Thats right! when my di runs out in about a month we wont be wasting any more money on it, my ro prduces at 1-3 ppm, as long as there is enough pressure an ro is all you need. not only that, send di water away to be analysed, you wont be happy with the result, there are trace elements of all sorts of nasty things in it that you really dont want building up in your body over many years. ro water has none of these things.
Your ro gets it down to 1-3ppm what membrane is in it Lee ?
Twin 40 40 boosted to 100psi with about 30% waste
what booster pump is that? that is a good pure to waste ratio. i haven't worked mine out but i think its higher than 30% also i can only get my ro down to about 18ppm after both my 4040's
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Steve
What is your tds in
Rob ;D
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good question. i can't remember exactly but i think its about 300ppm
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So is mine, hard water area, unpumped 450gpd unit, throwing out 003 all day every day
Rob ;D
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Last week I cleaned a whole round with 007 TDS water in direct sunlight and not one window Spotted :D
Please go easy on criticism I feeling tender today ;D
Adders
So you checked your whole round, thats getting the ladder out and checking tops as well as bottoms when they were dry and every single pane of glass was perfect?
You either only did 3 houses in the day or you may be exagerating slightly.
That's my only criticism ;D
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i spoke to someone else that said the same. i don't understand why mine isn't lower
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Now this is interesting! I'm a slave to 000 tds or at least sub 005 tds.
When my membranes are new I get down to 008 but then up to 012 and remained pretty steady for a few months before it creeps up. (original tap water 300 plus)
I might try a tank of 010 on a school I've got coming up and see how it goes.
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i spoke to someone else that said the same. i don't understand why mine isn't lower
I am guessing it is your tap pressure is bad, I have a 4040 470 in 7 out un pumped 75psi from tap
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i spoke to someone else that said the same. i don't understand why mine isn't lower
I am guessing it is your tap pressure is bad, I have a 4040 470 in 7 out un pumped 75psi from tap
my tap is straight off the mains and is real good pressure. i don't know what but it has a high flow
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i spoke to someone else that said the same. i don't understand why mine isn't lower
I am guessing it is your tap pressure is bad, I have a 4040 470 in 7 out un pumped 75psi from tap
my tap is straight off the mains and is real good pressure. i don't know what but it has a high flow
how often do you flush and when was the last filter change ?
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i spoke to someone else that said the same. i don't understand why mine isn't lower
I am guessing it is your tap pressure is bad, I have a 4040 470 in 7 out un pumped 75psi from tap
my tap is straight off the mains and is real good pressure. i don't know what but it has a high flow
how often do you flush and when was the last filter change ?
its been the same since i bought it all brand new 2/3 months ago (apart from 1 4040 ro which i've had for about 12 months)
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So is mine, hard water area, unpumped 450gpd unit, throwing out 003 all day every day
Rob ;D
Do you use resin Rob ?
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I allways thought that if it was new cleans your TDS wants to be as low as possible, only on windows that had been done several times before could you go above 5 maybe up to 10.
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Make sure you use two DI resin vessels, even if your RO + DI. If the resin in the first DI vessel is spent, it still acts as a prefilter to the second, your resin will last ages like this.
Think about it, throwing resin away at 005 is a waste, if your input is 020, it still removes 15, and that's 15 the second vessel doesn't have to remove. When the TDS rises after the second one, shake both vessels, after a little while when it creeps up again, swap the second on to the first, fill the first with new resin, and place it second. And so forth and so forth.
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I might try a tank of 010 on a school I've got coming up and see how it goes.
010 is fine
ive done a few streets with it upto 050, i should add i didnt know at the time, i then paniced and poured all the water away and asked a local WC'er who was good enough to fill up some drums for me ( cheers for that again ;))
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ive had water at 000 but still had complaints as you say cleaning with water at 030
never got any but just an ro on its own would not get water pure for us anyway and our water
is soft comes out of tap at 150 / 130
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am sure if your cleaning windows that you have already cleaned several times, you may not notice any spotting right away, but give it a few months and then spot the difrence, i would keep to 000, for all the resin you would use in a year would be pennys, its not worth it imo
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peace of mind for me - if i know my tds is zero then i can rule the purity of the water out straight away should i have any complaints.
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38 months of wfp and I have only ever bought 1 bag of resin.My RO produces water at 0tds. I am going to take my DI tanks out of the van this spring.I sold my Half bag of resin on 2 years ago. My windows are fine.I have allways kept my di tanks in the van just in case but now I want to reduce the weight in my van.
Neil
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peace of mind for me - if i know my tds is zero then i can rule the purity of the water out straight away should i have any complaints.
spot on ftp
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Just a thought but when put tds in tank, which is creeping up as naf pressure. It still shows a green light even though the tds is around 15, which is basicaly saying it is good to go??? I have wondered on this for a bit. Although i do agree it is better to go on the side of caution eg 000 but is it worthgetting worried when discover it has crept up
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Recently a good friend of mine asked if he could borrow My DI to check something out on his RO..
I keep reading about people that say the TDS can go up high, as long as it stays below 015 ::)
So not having my DI I tried it on my own windows ::) My TDS was 007 and the windows wear perfect ;)
Now I know its still best to keep it as low as possible, But if my RO brings it down low enough and it does I see No reason not to have a DI :o
Last week I cleaned a whole round with 007 TDS water in direct sunlight and not one window Spotted :D
I know a lot of you are going to give me stick on this, But when I read comments about peoples TDS that are 002 and people saying its too high ITS not
Please go easy on criticism I feeling tender today ;D
Adders
A few months ago i had a customer who kept pestering me to clean his conny roof, i was trad at the time but had started to build a wfp system so i brought my wfp pole and plugged straight into his water supply via the hose which was about 38 tds, and it came up great, i wouldnt recommend cleaning windows like that :) but i think it proves you can tolerate a bit, but i think i would rather have 000 for piece of mind :)
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Ian
Never used resin. Sorry I did get sold the 'you need 000 water' myth when I bought my first system from Stream.
Used it for about 3 months and have never used it since.
Rob ;D
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my brothers ro kicks out at 003-005. he doesn't use resin and has no problems.
my merlin kicks out at 010-012 and I use resin, usually at 000 but I don't worry as long as it-s below 010.
I once used 017 and did notice a tiny little bit of spotting, but didn't get any complaints