What's state of the art for washing a Model S at home and making it shine?

[dbldwn02]

I use water from my reverse osmosis filter to rinse the car. 0 ppm dissolved solids. I just toss a couple buckets of RO water over it and take it for a drive. Spotless and easy. Of course, this only works if you have some type of ceramic coating.

 

[Daniellane]

I use water from my reverse osmosis filter to rinse the car. 0 ppm dissolved solids. I just toss a couple buckets of RO water over it and take it for a drive. Spotless and easy. Of course, this only works if you have some type of ceramic coating.

I am also a big believer in Spot free water for washing and rinsing. Anything you can do to minimize wiping a car dry prevents damage to the surface.
I use a pressure washer with deionized water from my CR Spotless
Simple Chuck Spotless Water System
Simple Chuck Spotless Water System - CR Spotless Water Systems

I blow all the water off with a Metrovac 20amp Master Blaster Revolution with a 30 foot hose Works great!
Air Force® Master Blaster® Revolution™ with 30 foot hose MB-3CDSWB-30

When I am away from home For extended periods I actually use distilled water that I buy in the store for about a buck a gallon.
Usually cost me five or six bucks to wash my car. I pour it in a 5 gallon bucket and use a
40V POWER SHARE HYDROSHOT PORTABLE POWER CLEANER

40V Power Share Hydroshot Portable Power Cleaner (2x20V)

FYI,
The foaming accessory is very unimpressive. I just use another bucket with a sponge and microfiber towels…

 

[Naekuh]

I use water from my reverse osmosis filter to rinse the car. 0 ppm dissolved solids. I just toss a couple buckets of RO water over it and take it for a drive. Spotless and easy. Of course, this only works if you have some type of ceramic coating.

You cant get 0 ppm unless u have a DI stage...
I assume your running a DI unit?

I am also a big believer in Spot free water for washing and rinsing. Anything you can do to minimize wiping a car dry prevents damage to the surface.
I use a pressure washer with deionized water from my CR Spotless
Simple Chuck Spotless Water System
Simple Chuck Spotless Water System - CR Spotless Water Systems
View attachment 528370

^ This user here, is using a DI Stage.
This is the only way you can get 0ppm, well you could also goto a drug store and get straight Distilled.

If your house has a water softener unit, it would also get rid of spots, as the spots are mostly hard water dry stains from the Calcium, so an expensive DI unit is not required.

 

[dbldwn02]

You cant get 0 ppm unless u have a DI stage...
I assume your running a DI unit?

My tap water tests at 45ppm which is good for city drinking water. After running it through my RO filter, it tests at either 0 or 1 ppm. When I use it to rinse the car, it doesn't have any spots after air drying. The RO system was $300 and does 90gallons per day. It also wastes 4 gallons for every 1 gallon produced, but it's way cheaper than going to buy distilled from the store at a dollar per gal.