[Tosh]

Di water damages metal big time. my mate is manger of a distillery and the guys who make the tanks told me it is rotting the tanks quicker than normal tap water.

That`s correct,Tosh i clean my van with pure water and the badges are rotting.

Where's your control experiment? 

What makes you sure that it's the pure water?  Could it not be the rain and damp in general?

What do you mean by 'your badges are rotting?'

I'm an ex-boy scout, and rain water never affected my badges for naming the different parts of a knife, etc.

For you to state this as fact, you need to have a van that's...

Sigh, I can't be bothered.

[Tosh]

Yes I can be bothered:

Read this:

A recent use of purified water is that of a final rinse in some car washes where, because it contains no dissolved solutes, the car dries without leaving any spots.

From the Wikipedia link:

ht tp://en.wikipedia.org/wiki/Distilled_water

So I'm right!  Nah, nah, ner, ner, nah!

[Ian_Giles]

Sigh, this old chestnut!

Why do people keep thinking that pure water is aggressive? Where is the 'real' proof...rather than purely anecdotal?

For window cleaning purposes we measure water purity in parts per million, do you really think that the difference between rain water at 0.004 ppm and the stuff we use at 0.000ppm suddenly turns it into a ravening metal rusting, paint destroying fluid??
In laboratories our so called purified water isn't considered pure at all, they measure it in parts per billion rather than parts per million, so that stuff is what...a thousand times purer!!! And not just a tiny bit purer than rain water!

As Tosh has said, calling our water more aggressive is just a sales pitch.

The stuff can't 'rust' containers any faster than normal tap water, for rust to occur it has to have air for the metal to 'oxidize', keep the container full of water and it will not rust/oxidize, except around the fill level where are air and water combine.


Ian

[dave allen]

well that certainly raised a debate! Gonna coat the floor of van anyway whilst its empty of everything,dont suppose it'll rust away in my life time anyway!Cheers Dave A

[Sir Squeaky]

If your lacquer top layer on your car is not good, don't rinse with pure water, I did, and it left little specs on the entire van lol.

I need to t-cut the thing really, colour has faded.

Pure water will fade your paint in the first place.
Once the polish is taken off the sun and rain will flatten the finish.
Obviously you'll get away with it on metallics.

Rubbish.  Professional car valeters with posh vans use pure water.  Fact.

Rubbish to you then Mr.Uninformed. :

Yes, they wash the car with it, THEN POLISH IT!
That's what valeters do...

[Roy Harding]

When I have changed my resin colum, I have strained the resin through a good scrim, so that the water drains out.

 I have left it to drain some times and forgot it for 4wks by then the scrim has totaly disintergrated, as if eaton by battery acid.

Roy

[pjulk]

That link you posted tosh is great.

One thing that caught my eye on that web page was on the section Drinking Purified Water

It says

making DI water perfectly fine to drink

Now i have seen load of times on these forums that you can't drink water once it has been through the D/I

Obviously you can

[[GQC] Tim]

That link you posted tosh is great.

One thing that caught my eye on that web page was on the section Drinking Purified Water

It says

making DI water perfectly fine to drink

Now i have seen load of times on these forums that you can't drink water once it has been through the D/I

Obviously you can

You've got different grades of DI resin, some are suitable for the food market, some aren't made for that, so I definitely wouldn't drink them.

[pjulk]

I didn't realise that i thought resin was resin.

I best leave it alone then 

[Oakley Windows]

When I have changed my resin colum, I have strained the resin through a good scrim, so that the water drains out.

 I have left it to drain some times and forgot it for 4wks by then the scrim has totaly disintergrated, as if eaton by battery acid.

Roy

Roy I had a scrim go like that too, but it was only left out in the garden, bunched up, and forgotten about. Think its probably just what neglected scrims do, bit like me really when Im neglected 

[[GQC] Tim]

I didn't realise that i thought resin was resin.

I best leave it alone then 

RO water is perfectly fine to drink btw, a lot of our RO's come from the food/drink industry anyway.

[Oakley Windows]

Reverse Osmosis is something completey different to resin

[Tosh]

Rubbish to you then Mr.Uninformed. :

Yes, they wash the car with it, THEN POLISH IT!
That's what valeters do...

I don't think they do.  What would be the point of washing a car with DI water; then polishing it?

They may as well use untreated tap water if they're going to do that.

[Sir Squeaky]

I agree, it's a waste of time.

But if they're not polishing cars and doing the plastics, then it's not valeted is it?

[Tosh]

This is similar to how I clean my car (when I do clean my car which is occassionally):

ht tp://www.rinsepimp.co.uk/documents/instructions.pdf

This is obviously cleaned with DI water.

[AuRavelling79]

Just saw your tag-line Tosh - about the funnel - do you look like a little steam engine, a tugboat or the tin man in wizard of oz?

[dd]

When I have changed my resin colum, I have strained the resin through a good scrim, so that the water drains out.

 I have left it to drain some times and forgot it for 4wks by then the scrim has totaly disintergrated, as if eaton by battery acid.

Roy

I tried wasing my scrims in pure water for a while because I thought it would give better results but had to stop because they started disintegrating (OK on micro fibre cloths though). Have also noticed it makes holes in cotton t-shirts, or anything that is 100% cotton.