Installed RO/DI system this weekend
Living in the heat of FL and being kind of windy near my house water dries real quick during the wash, even in the shade. I decided to install a RO system and the run that through a DI system into a 40 gallon pressurized tank. RO may get 90% of impurities out and then the DI will get it 99% of minerals out. Since DI filters are more expensive than RO and have to be replaced a lot more frequently, this way the filters will last a long time since pretty pure water is going through the DI system. Now going through both systems may be a little overkill, but I figured why not get the water as pure as possible. I installed a new hose spicket on the outside of the house and I'm good to go!
Living in the heat of FL and being kind of windy near my house water dries real quick during the wash, even in the shade. I decided to install a RO system and the run that through a DI system into a 40 gallon pressurized tank. RO may get 90% of impurities out and then the DI will get it 99% of minerals out. Since DI filters are more expensive than RO and have to be replaced a lot more frequently, this way the filters will last a long time since pretty pure water is going through the DI system. Now going through both systems may be a little overkill, but I figured why not get the water as pure as possible. I installed a new hose spicket on the outside of the house and I'm good to go!
I currently run a CR DI system and follow up with a bj using a Master Blaster.
This works pretty well but, on those super dry, hot 100+ deg., low-humidity days, it could use some additional help. Plus, we have some of the most mineral-laden water where we live in SoCal that I've ever seen. If I let the car air-dry with water directly from the spigot, it will be dirtier than before the wash. 
Questions:
1) Was this a turnkey RO system you installed or pieced together by you? If you put it together, can you provide a list of components and schematic of assembly?
2) Is the tank pressurized due to the system pressure or are you supplementing it with additional pressure? If so, what's the source?
3) I have the hi-flow version of the CR setup and even that can be a bit slow. Does the RO setup reduce the flow rate further or does the tank act as a sump/plenum/reserve to ameliorate any flow reduction?
Here's my current setup - I have room for more:
Inside the garage - I located these here to keep them out of direct sun.


Externally, the water comes from the spigot and goes to a switching valve box I built and then either directly to the hose or to the DI filters and then to the hose.

I used a two-way paired with an anti-backflow to prevent backup to the CR filters. I use "dirty" water to wash the car and switch to DI for the final rinse. Works well but I'm always looking for ways to improve the water quality.
Last edited by Patches; Jun 27, 2016 at 10:52 PM.
Hope this helps let me know if you have any more questions.
The Best of Corvette for Corvette Enthusiasts





Living in the heat of FL and being kind of windy near my house water dries real quick during the wash, even in the shade. I decided to install a RO system and the run that through a DI system into a 40 gallon pressurized tank. RO may get 90% of impurities out and then the DI will get it 99% of minerals out. Since DI filters are more expensive than RO and have to be replaced a lot more frequently, this way the filters will last a long time since pretty pure water is going through the DI system. Now going through both systems may be a little overkill, but I figured why not get the water as pure as possible. I installed a new hose spicket on the outside of the house and I'm good to go!
So, if you do not mind, how much this all cost?


Amazon was my friend... again.
Last edited by Avanti; Jan 21, 2019 at 07:44 PM.















