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      01-27-2025, 12:07 AM   #1
BGM80
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CR Spotless DI Water System

Hey Everyone,

I'm going to go in on a CR Spotless DI Water System (portable) and had some questions.

It seems you really only need it for the final rinse off. I saw someone's setup who created their own bypass of the system, then change the controls to have it pass through the CR system for the final rinse. Alternatively, just thinking about connecting it before the rinse, or just leaving it on for the whole thing and change the filters more often.

Does the stainless steel inlet hose it comes with limit waterflow/GPM at all, or have no impact?

Thanks in advance!
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      01-27-2025, 01:22 PM   #2
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I went for a non CR Spotless DI system, but they're basically all the same. Using it only for rinsing saves resin, the resin only can remove so much stuff before you have to buy more. There's benefits to using it for other things, it helps keep your soap from spotting, prevents nozzle build up, etc... but using it for rinse is where the real benefit is.

Bypass wise... You can spend money for Ys and Ts and whatever... Or you can just put a pair of quick connects on and manually move it.
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      01-27-2025, 01:45 PM   #3
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I built my own 3 stages DI water system! For some reasons, our water has low TDS (around 50) but has some discoloration so I do Sendiment-Carbon-DI. I retrofit the CR Spotless cart since I use the system to clean the House Windows and Solar Panels couple times a year.
I just use the Shutoff valves and T for bypass. The stainless steel hose appeared not to affect the flow! Also add a flow metter to monitor flow and total consumption.
I spent less than half the price of the CR Spotless.
You could tell the water before and after
One of the best things I purchased. Now I could wash the car anytime and don't have wait for the sun to go down and dont even blow/wipe the cars after unless I apply sacrificial detailer afterwards.
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      01-27-2025, 04:17 PM   #4
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I find rinse only method to still leave spots later. I'm starting to move to spotless for more than just final rinse. I'll do most of the wash without it, but I'll incorporate it earlier, like when I wash off soap for the last time, apply a touchless sealant, for example, then a final rinse.

And I don't have bad water at all, TDS of 210 from the source here.
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      Yesterday, 12:23 AM   #5
BGM80
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That homemade system is pretty legit - really nice work on that. I got the CR system and think just putting some quick connects on it seems like an easy way to quickly attach it for the rinse phase. I think I just get a few standard 3/4 hose connects and that will work for each side.

Correct me if I'm wrong - if I'm using regular water for the tires and foam, to then quick connect in the DI system I'll need to turn off the water supply, mostly empty out the pressure washer/hose, then attach the DI System, then turn water back on for the rinse.

Also - when you're done washing and you turn off the water supply (hose) do you then run the pressure washer/DI system a little to drain out the system?

Thanks everyone!
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      Yesterday, 08:18 AM   #6
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I don't think it's gonna hurt anything to use the water that's in the pressure washer after connecting the DI water. Use it on your wheels or something if it worries you.

You could get a little shutoff valve... Or you could be a caveman like me and just fold the hose up 2-3 times to stop the flow of water lol. A shutoff valve before the QC is the nicer option for sure

It seemed like people recommend leaving the DI system wet inside. I'm curious about this too though.
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      Yesterday, 08:26 AM   #7
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Here's my homemade pressure washing station. Although the DI system looks like it came from CR Spotless, only the mounting bracket is from them (it was more substantial than any other ones I could find online). Everything else, other than the 3/4" PEX pipe (which I got at HD), was sourced from either Amazon or Ebay. Additionally, instead of using DI cartridges, I am using an adapter kit that allows me to pour a 1/4 cu ft of resin into each filter for more capacity. Currently, I have it set up with a quick connect to attach it to my garden hose but will be connecting it directly to my house water supply as my next project. I also have quick connections on my Active power washer and an additional HP hose so I can disconnect it and use it for other duties around the house.
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