Stop TDS creep

[Silent]

For those smarter than myself. Can someone provide me some links to make this for much cheaper than buying this retail? I want my ro/di connected to my ato but I do not want tds creep. We all know making small amounts of ro/di will increase your tds. If you can have a float valve that will come on when your container is low but fill it all the way up. That would be great. I found the float valve but it is $200. Who can replicate this?

http://www.timcohorseandfarmsupply.com/long-tail-pump-buddy-valve-3-4/

 

[pdxmonkeyboy]

Do you have an apex unit? If you do then you can mount a float valve in the bottom of your tank. When the water gets low then the apex will turn on a $10 1/4" solenoid valve that will allow water to flow. When it fills the tank your float will shut the RO off. Just set the apex to shut the solonoid valve off after an hour or whatever.

 

[Silent]

So you have 2 different float valves and 1 solenoid?

 

[pdxmonkeyboy]

Just one wired float switch down low that will open the RO line when its low. Your regular float valve ro thingie. Will still be used to stop flow when its full

 

[Silent]

Im actually looking to reduce electronic automation. Just a ro/di unit and a float valve. Im wanting less tech so-to-speak.