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Originally Posted by snareman
I was ignorant to this fact before but apparently water softeners can actually increase the TDS. When I checked mine it's actually about 50 higher than my hard water. I could probably realistically wash the car with just the soft water and be fine. The dionizer is only for the final rinse which really doesn't take that much water so I'm assuming I'm going to be able to go a long time before I have to pay for new resin. Hopefully.
Also I don't think you need epoxy. I would think regular garage floor would be fine. You could also do one of the swiss trax variants.
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Quote:
Originally Posted by B58-M340iX
I appreciate the post. I need to test before and after to see what the difference is between them. Are you saying that for the regular washing you would bypass the DI and then for the final rinse you would use the DI?
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Correct. Generally you just use the DI water for the final rinse. At the DIY car wash I think this is probably what's labeled as "spot free rinse" on the selector knob.