Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: stevef on September 05, 2005, 06:39:20 pm

Title: TDS help
Post by: stevef on September 05, 2005, 06:39:20 pm: My tap water has gone up to 607ppm from about 540ppm this has been stable for some days. my product water TDS is 004ppm after polishing through a small DI filter with new resin. Is this water @004ppm good enough to clean with, as I up till now had a TDS of 000ppm and do not want to start spotting now!

Steve
Title: Re: TDS help
Post by: 24-7 S C Services on September 05, 2005, 06:43:14 pm: Hi Steve,

I will not operate unless i have a TD's rating of 0. This way i can be sure of my results.

Is the 607 Your tap water reading? Are you using an RO unit?, can you give your final product another polish to bring it to 0?

Andrew
Title: Re: TDS help
Post by: H h20 on September 05, 2005, 06:44:58 pm: That sounds terrible mate,it also seems strange that its not reading oo after resin,have you access to another tds meter?,it could be faulty,mine has gone on the blink,i give it a whack and it reads ok but it does go faulty after a while,just a thought,Gaz. ;)
Title: Re: TDS help
Post by: Jon T.C. on September 05, 2005, 07:19:23 pm: 004ppm is fine to work with. I think that there is some mis-conception that your water has to be 000ppm. I've spoken to loads who work with water up to 15 ppm. I think that as long as you clean the frames properly and rinse properly , it should be fine.If you have any MAJOR problems contact your system supplier or someone like r.o. man.

Regards Jon
Title: Re: TDS help
Post by: stevef on September 05, 2005, 09:26:43 pm: 607 is my tap reading, gone up recently from the 540 mark, yes I have RO, yes I polish through a small DI which I have just changed the resin. Me thinks I will have to get a bigger DI and install in my trailer. but I am still puzzled wih this reading also I have one meter on RO and one handheld

Steve
Title: Re: TDS help
Post by: Moderator David@stives on September 05, 2005, 09:30:44 pm: slow down the flow rate then test the tds .
just an idea ??? ???
Title: Re: TDS help
Post by: AuRavelling79 on September 05, 2005, 09:33:03 pm: What's your reading after the RO but before the di resin?
Title: Re: TDS help
Post by: matt on September 05, 2005, 09:39:50 pm: my TDS is now 006 - i am now thinking of renewing the resin
Title: Re: TDS help
Post by: Justin Ruggles on September 05, 2005, 09:46:05 pm: I always take mine upto 015 ppm, then I change my DI resin cartridge on my RO system.

It is best to clean with 000ppm thou but when you pick up experince I would start to take it up to a figure you are ok with.

Justin
Title: Re: TDS help
Post by: H h20 on September 05, 2005, 09:46:29 pm: ::) ;D resin,resin who mentioned resin ;D lol
Title: Re: TDS help
Post by: stevef on September 05, 2005, 09:53:38 pm: OK this gets spooky, reading after RO 001ppm,checked with RO TDS meter, reading after DI resin 004ppm checked with handheld meter yea I know! my gut feeling is that as Gaz said my newish handheld meter is playing up
Title: Re: TDS help
Post by: Justin Ruggles on September 05, 2005, 10:00:11 pm: Its called equilibrium leakage.

Justin
Title: Re: TDS help
Post by: Moderator David@stives on September 05, 2005, 10:02:16 pm: Quote from: Justin Ruggles on September 05, 2005, 10:00:11 pm
Its called equilibrium leakage.

Justin

you beat me to it .its where the resin is that saturated it cant hold on to the impurities no longer ,then they start leaching out
Title: Re: TDS help
Post by: stevef on September 05, 2005, 10:36:28 pm: No the resin used for polishing is new yesterday
Title: Re: TDS help
Post by: Moderator David@stives on September 05, 2005, 10:41:04 pm: damn ! i thought we had it ???