[Clive McDonald]

I've lost couple of jobs because the painter and decorator said I rot and damage the frames.

I find the rights and wrongs don't matter if the customer sacks you thats it. Let it go.

[jeff1]

The Boss just reminded me that some months back we took on a new customer, when I walked around with the custy to price his house, I noticed the fittings on the door were Gold affect.
I then noticed all the gold cracking and flaking off, I pointed this out to the customer and he told me it that it had been happening for a long time and this Guy never had a window cleaner since the conservatory was built a couple of years previous.

Defiantly not pure water damage.

[dai]

What's the difference between DI water and rain?
No seriously, has anyone done a PH test on DI water? It won't be alkaline or it would show on the meter, it could in theory be acid though without affecting the TDS reading.

I have seen these plated hinges deteriorate rapidly on a Marina that I clean, I put that down to sea salt.
I was trad then, so nothing to do with WFP. Where could I buy some litmus paper?
It would be interesting to see.

[dai]

Just googled this, I don't know if 7 is acid or not.
Letter 33146
pH of Deionized Water [Saudi Arabia] 

++++

I just want to know the standard pH of deionized water if there is.

Thank you very much.

Ghani Gonzales

Isagani Gonzales
King Faisal Specialist Hospital & Research Center - Riyadh, Saudi Arabia

++++

pH will be fairly close to 7 as it comes out of the resin bed, particularly if it is a mixed resin type. This pH will slowly drop as it absorbs CO2 from the air.

Note that you cannot use conventional pH meters on really pure DI water. It requires a modified approach that can be given to you by any manufacturer of research grade equipment.

[darragh windows]

What's the difference between DI water and rain?
No seriously, has anyone done a PH test on DI water? It won't be alkaline or it would show on the meter, it could in theory be acid though without affecting the TDS reading.

I have seen these plated hinges deteriorate rapidly on a Marina that I clean, I put that down to sea salt.

I was trad then, so nothing to do with WFP. Where could I buy some litmus paper?
It would be interesting to see.

someone on here a while back tested it with their aquaraium tester and it was very acidic cant remember how strong though

[dai]

Ok here's the answer, The hinge manufactures are full of crap. 7 is neutral.

The further from 7 you are on the pH scale, the more acidic or basic the solution.  For example, a solution with a pH = 1 has a hydronium ion concentration of 1 x 10-1 M (0.1 M).  The table below further illustrates the relationship between hydronium ion concentration and pH.

[dai]

And this is why you should not drink too much of it.

"DI water is extremely low in everything, so what it does is take electrolytes from your body into solution and carry them out. This can be a problem over a period of one day if enough is given with no other electrolytes. The safety people can not say anything is OK if it can't be safely overdone in a work environment, they deliberately err on the side of caution, as they should. Moderation in all things... A little pure water is actually good for you, but too much is very very bad... kind of like potassium, sodium, or any other mineral. Symptoms include fever, headache, nausea, edema, stroke, and death".

There can be a high concentration of germs in it too. Dai