CR Spotless homebrew? ROI TDS system.

has anybody build a TDS / ROI water system for use in cleaning cars. I have like way way to many and honestly being able to soap them down and just let them dry would be a huge help. Thinking of having it slowly fill a 55 gallon drum and just hook my powerwasher up to the tank so I can do cars and the windows of the house.

The CR systmes are like 500$ and they use expensive resin. In theory you should be able to throw on of these things together for like 200$ and have them have 3x the total resin and the ports to replenish the resin.

Part of me is being a cheap monster and part of me knows that the TDS level with my city water is ~350.

Kind of want to find some plans.

Please explain your acronyms so we can make sense of your post.

dean1484 wrote: Please explain your acronyms so we can make sense of your post.

No kidding. You seem to be talking about water for washing cars, so I'm guessing TDS is total dissolved solids and ROI is reverse osmosis... iSomething? CR, I have no idea.

I'm thinking he meant RO/DI. Unless he's somehow trying to make money on this deal and is talking about return on investment?

Anyway....Mr. Clean had some gimmicky cleaning system that was supposed to remove water spots. I find that a good chamois+blade works the best for the least amount of money.

Je ne comprends pas?

I don't understand all that gibberish in your post but you should absolutely build an automated drive-thru carwash system somewhere on your property.

Good Lord, man. I've worked in the defense industry, and I've never seen so many acronyms all at once.

Sky_Render wrote: Good Lord, man. I've worked in the defense industry, and I've never seen so many acronyms all at once.

Did not read that before I posted it, its a a bunch of salt water fish tank and water acronyms.

Effectively I want to build on of these.

Brings the TDS (Total dissolved solids) in the water down to 0 so you can just spray your cars down after washing them and let them dry.

San Diego has some of the worst water in the US so buying something like this with only about 1/5th of a lb of resin in them will last all of 50 gallons.

I have been looking at RO/DI systems for saltwater tanks that can make about 100 gallons a day with 400 gallons of waste. BUt then I have to build a tank to hold the water.

Effectively I want to build a system like the CR spotless one but with say 2-3 lb's or mixed resin that I can get about 1K gallons out of and that I can recharge the resin easily with. Resin is not cheap but it can be "washed" and reused for lack of a better term with heavy acids and bases.

Curious, what is this "Resin" you speak of? How does this thing work?

My experience with water treatment is limited to filters and flocculants.

Giant Purple Snorklewacker wrote: I don't understand all that gibberish in your post but you should absolutely build an automated drive-thru carwash system somewhere on your property.

GET OUT OF MY HEAD

No seriously, that's exactly the same conclusion I came to

In reply to NOHOME:

Ion exchange resin. It removes ions from the water. For every positively charged ion it takes in it puts out an H3O+ ion and for negatively charged ions it will release a OH- ion. Those two are just the ions that water disassociates into. The resin is little beads.

https://en.m.wikipedia.org/wiki/Ion-exchange_resin

Giant Purple Snorklewacker wrote: I don't understand all that gibberish in your post but you should absolutely build an automated drive-thru carwash system somewhere on your property.

Given the number of cars that I have and mantain for other people at this point its not a terrible idea. What I want in the short term is to put a shaded popup tent on the backside of the house near the drain on the driveway. It gets so hot here, but the RODI system would take car of that.