My entire house's water system (including hose and toilet water) goes through reverse osmosis. Would I still need a deionizer?

Also, what foam gun do you guys recommend?

 

Wow really? That must be some unit. My guess is no.

 

I use Griot's deionizer. I have basalt black and have washed car with city water that has not been thru softener. The deionizer does not have a meter, so I had to buy separate meter. The total dissolved solids pre-deionizer is 150ppm. I check water after each wash(6 so far) and the reading has been consistent at 5ppm. I love the results so far. Can't imagine washing without. I just use it for rinse cycle but maybe the high TDS is doing some damage during wash.
I use Griot's foam gun. I think it works great. Is it better to rinse off foam prior to wash?

 

Nope, RO takes care of it all. I have the same setup - whole house RO. Thing is, just make sure your hose bibs are hooked up to your house supply lines (which are fed by the RO water) and aren't connected to the well output... I am guessing that since you sound certain that the hose water is fed by RO - you're all set.

 

Thanks for the info!

 

We obviously married sisters!

 

You can buy Pentek water filters from Amazon for a lot cheaper and do the job. I made a 4 filter system from the 10" big blue filter housing and bought the resin direct from CR. I pre-filter the water going to the resin, which greatly extends the life of it. Here's what I have:
4 of these:

I simply screwed them to a piece of plywood board at the top.

The first filter is a carbon filter:

The second filter is a Sediment filter for possible Carborn residue from the first filter.


The third and forth filters are the resin cartridges from CR. System works really well and the resin lasts the entire year, about 100 washes on all my cars. The other filters last 50,000 gallons of water so I'll probably change them every 5 years. Entire cost is about $300 when including the resin cartridges.

 

More info in this foam gun?

 

 

Sorry, excuse my ignorance but...

What is the benefit of using a foam gun over simple soap and water and a sponge/towel? Would this be in addition to the sponge/towel?

 

The idea behind it is to minimize the amount of rubbing that is necessary to wash the paint. You presoak with the foam gun to loosen dirt and lubricate the paint.

Using the foam gun and the 2 bucket method of washing will minimize marring and swirl marks on your finish.

 

http://www.autogeek.net/foam-gun.html

They explain it too

 

http://www.purewaterproducts.com/garden-hose-filters anyone given this a try before?

 

with foam gun and di water setup can u just soak and rinse in the winter without scrubbing the car and get it relatively clean?

 

I use a highly lathered microfiber cloth and rinse it in two buckets of clear di water.