[keen n clean]

Hi all,Just recently i have noticed my tds after di is creeping up,i am now working at around 5ppm while i await resin change ,just after some feedback on what is the highest level you can get away with and work at before window cleaning is compramised???

Andy

[spikecat]

Should be ok up to 10ppm.

[Pope vader]

i think the tds of water is a con,  i have used water up to 100 (by accident and didnt get a single problem, i was just using a higher flow rate)

they say we need a tds of 000 to keep the windows spotless,  yet many have gone over and had no problems,  yet you can get spots at 000  but then you can use the excuse that it is a first clean and spots are expected

[scud]

  I have been up to 35 by accident and not had a problem, regularly let it go up to 15 before a resin change.

 

[ascjim]

i went to 85 :S oops

[AS Window Cleaning]

do a search mate. there's been loads of topics on this already. I go up to 15 before I start to see marks on certain windows. keep a sharp eye on it after 10ppm.

[Tim82]

Accidentally went up to 137 last week. Didn't even leave any marks.

[wfp master]

137 & 100 i might as well throw my di vessel out.
some story tellers on here.

[Tim82]

The tap water PPM level doubles this time of year (at least where I am in the northwest) so my DI needs changing a lot quicker all of a sudden.

[gary999]

anything over 15ppm has caused me problems,even if it is just
slight spotting.

night falls earlier now so will be strong possibility any mistakes
are covered up.

my personal feeling is if your intial cleans over the first few months
are done with oooppm and all ingrained dirt has been pulled out
of frames etc,on 4 weekly maintenance cleans you will get no
or minimal problems from a slightly higher tds

my tap water measures 58ppm and there is no way i would use
it,i tried on my own windows and it left a right mess

[Walter Pole]

i think the tds of water is a con,  i have used water up to 100 (by accident and didnt get a single problem, i was just using a higher flow rate)

they say we need a tds of 000 to keep the windows spotless,  yet many have gone over and had no problems,  yet you can get spots at 000  but then you can use the excuse that it is a first clean and spots are expected

I quite agree, I don't even use resin anymore...simply water from my RO at 16-20 TDS.  No lost customers and no spotting (I often clean inside windows so can see).  The key is high water flow, not measured it but number 4 on my Varistream.

[wightsurf]

i have not used a di for 2 yrs now,My ro unit puts water out @ 005 and it has crept upto 15 before at which point i change filters.But i have some resin on standby just incase but so far it's not needed.

[SB Cleaning]

Mines on 5 now and the windows are crystal still

[dazmond]

i keep mine to 000 if possible.occasionally ive used water up to  15 with no problems but i like to keep it pure!

piece of mind!

[A@R WINDOWCLEANING]

I put my hoses on my merlin back to front so i was putting waste water in my tank (idot) 326!!!! Tds ,no complaints

[AS Window Cleaning]

I put my hoses on my merlin back to front so i was putting waste water in my tank (idot) 326!!!! Tds ,no complaints

  done similar with my resin, then was wondering why all this sandy stuff was coming out of my brush!!!  doh!

[[GQC] Tim]

Been using around 39ppm, no problems here.

[AS Window Cleaning]

I think it s all basically down to 3 things:

1. quality of glass, ie sheeting or not
2.  how dirty to start off with, and how well you rinse
3.  whether this is in the sun or not.

I have seen definite spotting at over 15ppm so cant see how some are getting "pure" windows 4 or 5 times this pure!  Perhaps we have different ideas as to what is clean!!  :

All I can say is, once you get above 10, keep a very close eye on it.  And if you are like me and have a static IBC now, remember that it will take a while for the now unpure water in the tank to be diluted with the pure stuff you will be putting in (depending on your setup).

[dmlservices]

i keep mine to 000 if possible.occasionally ive used water up to  15 with no problems but i like to keep it pure!

piece of mind!

Yep keep it at 000. Then any problems are down to user error, not water quality.

Daz

[A & J Owen Window Cleaning]

youn can use upto 50ppm thats tops mate but the higher the reading the more you have to rinse.