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Car Care & Detailing
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Old 12-21-2013, 02:50 PM   #1
Squiddie
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Powerwashing the underside in winter (salt etc) - good idea?

In winter in MA I used to spray off the underside of my 2004 330Ci with a powerwasher, to get all the salt off both the floor and out of the moving parts. Now I'm not so sure about that anymore.

The problem is that the water is recycled. It is filtered all right, but I doubt that they get all the salt out.

Now I am concerned that what I am doing there is actually bad. I might be driving salt into hidden places that the powerwasher drives into but that are not usually reached by the normal driving spray.

Any thoughts on this?
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Old 12-21-2013, 02:59 PM   #2
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Powerwashing the underside in winter (salt etc) - good idea?

Just taste the water. Yeah that sounds dumb but you'll be able to taste salt.


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Old 12-21-2013, 03:13 PM   #3
Squiddie
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Just taste the water. Yeah that sounds dumb but you'll be able to taste salt.
Good point. But that still leaves open whether I might drive any of the salt sticking to the underside into hidden places.
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Old 12-21-2013, 03:17 PM   #4
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Powerwashing the underside in winter (salt etc) - good idea?

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Good point. But that still leaves open whether I might drive any of the salt sticking to the underside into hidden places.
I doubt it. Start with a low pressure wash and end with high pressure if you can. This should eliminate this possibility.


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Old 12-21-2013, 03:28 PM   #5
Kvasi
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Powerwashing isnt good enough. Yea you get rid of some of it, but not the that does real damage.
Take it to a carwash as often you can.
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Old 12-21-2013, 03:31 PM   #6
Squiddie
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Powerwashing isnt good enough. Yea you get rid of some of it, but not the that does real damage.
Take it to a carwash as often you can.
No can do. There is no carwash around me left that has a program with no dry-blow.
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Old 12-22-2013, 07:14 PM   #7
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You could position a lawn sprinkler under the car and move it a few times to get the entire undercarriage.
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Old 12-22-2013, 07:37 PM   #8
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You could position a lawn sprinkler under the car and move it a few times to get the entire undercarriage.
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