Pure water - what a difference

B

Big Red Cat

Active member
 Wiltshire
I've long been interested in PVR's idea of rinsing his car with distilled or de-ionised water after washing for a smear free finish.
Our old distilled water still, which was expensive to run, failed recently so I took the opportunity to get a Reverse Osmosis & De-ionising unit fitted instead.
After washing #308 yesterday I rinsed with some ultra-clean water - wow what a difference. Despite the sun drying off the car very quickly not a mark was left, I just had to pat dry the roof & the annoying areas around the mirrors etc. :D
I'm a convert, just have to work out the best way to rinse now. I couldn't get our old Karcher to suck up the clean water so ended up just throwing the water over the car from the containers. Not sure if a watering can or some sort of pump spray would be better.
Thanks PVR good tip :thumbsup:
 
Good to hear.

For the drought, I bought a karcher submersible pump with a hose attached to it so you can use that as well.

Can you not connect the hose to the clean water supply? An open hose rinsing works best for me.
 
I washed three cars the other day, once rinsed off with the clean water - just parked the car in the sun to dry. Not a mark on it and bone dry in 15 minutes.
 
Just don't drink the water, be careful what parts come into contact with the water, De-mineralised/De-ionozide water corrodes Martensitic stainless steels, I'm not sure cars contain any but you never know
 
pvr said:
Good to hear.

For the drought, I bought a karcher submersible pump with a hose attached to it so you can use that as well.

Can you not connect the hose to the clean water supply? An open hose rinsing works best for me.
Click to expand...

Unfortunately the RO/DI unit is at work (I work as a school lab tech) so I have to bring the water home. Luckily with the Zed being small & low it is not a big problem using some sort of pump sprayer. I used just under 10 litres yesterday but quite a lot of it ended up on me as I was sloshing it around :oops:
 
I got mine in December & frankly the best thing since Mr Hovis invented a slicing machine!

Feels strange leaving a wet car, after years of drying cars off, but well worth the investment.

Recently purchased a flow meter for mine to calculate when it is close to needing replacing vs just using the TDS meter. Only about £15 for it, as when the resin goes off the TDS jumps very significantly from my experience.

And chatting with PVR I'm not alone in undoing the screw thread after all the pressure is a royal PITA. I'm trying a new strategy this time, which is releasing the screw thread after each use, to see if it help in the longer term for not requiring so much force...time will tell.
 
original guvnor said:
MickAdams said:
Maniac said:
Ive been keeping an eye on this...
http://www.vyair.com/scripts/prodView.asp?idproduct=362
Click to expand...
That's what I got, it's gone up £5 in the last month though!
Click to expand...

How many washes do you get out of one these before you need replace/refill?
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Depends on the ppm.

Mine is 175 ppm from the tap, gives 5-6 months at 2 cars a week wash approx. Goes down linear on more use.
 
pvr said:
What do you mean with a flow meter?
Click to expand...

http://www.raceglaze.co.uk/race-glaze-water-filter-waterflow-usage-meter/

Not use it yet, but c.£20 cheaper than others I've seen.
 
Interesting. Assuming the DI lasts the same time each time, you get a better idea of when it is likely to go off.

Although I am now using my DI from the "soft" tap of my Harvey water system, so hopefully I should get a lot, lot more use of the same DI.
 
original guvnor said:
MickAdams said:
Maniac said:
Ive been keeping an eye on this...
http://www.vyair.com/scripts/prodView.asp?idproduct=362
Click to expand...
That's what I got, it's gone up £5 in the last month though!
Click to expand...

How many washes do you get out of one these before you need replace/refill?
Click to expand...

Simple calculator here that has been pretty accurate for me

http://www.morethanpolish.com/maxi-filter-refillable-long-life-water-filter-system.asp
 
The total might be correct, but no way that I only use 5 - 7 litres of water to rinse. That is what - 30 seconds of hose use?
 
I only ever use a watering can to rinse, minus the spout so it reflects an open hose.

I tend to wash & rinse panel by panel in the heat, as I find I get better results. I've found by doing this I use significantly less pure water than whole car at a time. Not the cost saving as my time is worth more, but in warmer weather I find the soapy water drying on very quickly - I have no shade on my driveway.

With this approach, you can rinse a car with just a 10l watering can; never use the open hose as just more wastage then required IMHO. Flow meter will be an interesting comparison for me on usage.

Mark at raceglaze also runs morethanpolish & has been extremely helpful in determining technique, alongside advice.
 
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