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Old 29-06-2018, 06:19 PM   #1
wotnoshoeseh
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Water Spots - how to avoid??

Hi,

I washed both cars quickly during the week, but didn't get finished until almost 10. I didn't have the time to dry off the cars so unfortunately the next day there were (and still are) lots of water spots on the vehicles.
I presume this is from the tap water drying off and the minerals leaving mark on the paintwork. If I were to use water from a water butt (rainwater collected from the roof) would that mitigate the rain spots (without drying the car, of course) ?

Cheers,
D.
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Old 29-06-2018, 06:25 PM   #2
neilmcl
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Try some Koch Chemie FSE and/or use a quick detailer as part of your drying routine. You really shouldn;t leave your car to dry on it's own unless you're using a DI vessel with your water feed.
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Old 29-06-2018, 07:20 PM   #3
wotnoshoeseh
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OK. I thought it was the additives in the tap water that was doing it, and that rainwater would not have the same issues...

First world problems, eh.....
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Old 30-06-2018, 09:30 AM   #4
DrH
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A change of technique could help
It is possible to have no water spots even washing a black car in the sun
1. Rinse the whole car
2. Prewash if you do that
3. Rinse off the prewash make sure the car is as wet as possible
4. Wash the roof and windows
5 Rinse the roof and windows
6. Wash the bonnet and front
7 Dry the roof
8 Wash one side
9 Dry the bonnet and front
10 Wash the other side
11 Dry the first side
12 Wash the rear
13 Dry the second side
14 Dry the rear

Viola a spot free finish
This is my routine that I have been using for years
It totally depends on having a hose
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Old 30-06-2018, 02:18 PM   #5
Taxboy
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Taking the end off the hose or using a watering can to "sheet" rinse makes the drying easier

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Old 30-06-2018, 03:23 PM   #6
OvEr_KiLL
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use adams blue or ultra foam
https://www.prestigecarcareshop.com/...tions/wash-dry
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Old 30-06-2018, 03:47 PM   #7
Harry_p
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Quote:
Originally Posted by wotnoshoeseh View Post
OK. I thought it was the additives in the tap water that was doing it, and that rainwater would not have the same issues...

First world problems, eh.....
Rain water is certainly a lot 'cleaner' of minerals as long as you have a decent setup to remove particles, normally a multi butt setup to allow debris to settle out in the collection but for clear water in the next.

It certainly shouldn't contain the dissolved minerals a lot of the uk tap water does.
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Old 03-07-2018, 04:42 PM   #8
garycha
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Quote:
Originally Posted by neilmcl View Post
Try some Koch Chemie FSE and/or use a quick detailer as part of your drying routine. You really shouldn;t leave your car to dry on it's own unless you're using a DI vessel with your water feed.
I bought some FSE a couple of weeks back to try on some small water spots (in spite of DI vessel) that had appeared on car.

I have to say that I am completely underwhelmed by the product, both as a QD and for my rogue water spots. It did nothing.

Fortunately a little dab of vinegar, followed by gentle fingered Sonax PF on MF, did the trick.

The CarPro Water spot and KC FSE may be better on newly formed spots, since limescale will get harder and harder and will etch in.
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