@Blackbyrd , OG uses the Cr spotless tanks for their deionization setup and CR definitely has the lions share of units in use vs other brands. Stay with me for a minute and I’ll take you through a little math and some hacks to increase the efficiency of these units.
Alot of this math is going to depend on the hardness/mineral content of your water source. OG says you can use 200-300 gallons per refill of the mixed bed canisters. We’ll use 250 gallons. 10 min of use for rinsing only at 2gpm leads to 20 gallons per vehicle wash. 250 gallon refills divided by 20 equals 12.5 washes per canister refill. We will use 12 washes for even numbers.
The OG replacement canisters at $160 mean $13.33 per wash.
If you get their pre mixed bags and re-use the canisters you spend $429 at 429/ (12 washes *3) = $11.91 per wash.
Buy the mixed bed media from CR spotless directly by the drum and its $369/ (12*3) = $10.25 per wash.
Now the cheater bar comes out. RV-mods sells a conversion kit that replaces the canisters with a more efficient down tube system. It ensures less blow by and more media per tank. $60 for the tubes and no increase in canister replacement time.
Without the mod if you by their mixed bed media at the same volume nets you $235/ (12*3) = $6.50 per wash
With the mod it supposedly increases efficiency up to 40%. I have not tried it out yet for accuracy of the statement. If so my ‘Rithmatic, one of the three R’s, says 235/ (16 washes *3) = $4.90 per wash.
At that sort of savings I’m willing to try it out, or at least land somewhere along the price per wash scale that’s a happy medium.
Here’s a link to the RV-mod website:
https://rv-mods.com/store/
Youtube video explanation from an actual user who converted from using OG’s version of the tank to RV-mod:
As the youtuber demonstrates, there is no loss in flow from the conversion to down tubes.
