RO Pressure Valve - such a thing????

[ckoral]

Here is my situation.

I have my R/O, then to a blue pressure tank which feeds to the kitchen stuff. This is also tied into the reef tank and storage vat.

Two problems: I forget to turn the ball valve off
I forget to turn the ball valve on



When reef storage gets emptied to make salt, and I fail to flip the ball valve on the drinking storage, I empty the drinking storage and tick the wife off.


I would like some sort of pressure valve or something that would hold back the 13LBS of pressure that is in the drinking water tank keeping it always full no matter the reef vat level. When and only when the drinking water tank is full, the 35 gallon reef vat gets filled up.

I am having troubles saying what I want.
Assuming my drinking water pressure is set to 13LBS, I would like my reef vat to only accept water if the pressure is greater than 13LBS for the overall goal of keeping the drinking water full. This would keep the family happy!

I have a float valve in the 35gallon vat if that matters.


Can anyone link me to what I need to accomplish this? Does anyone have this already? Do I make sense?

 

[ybenormal]

Replace the ball valve with a check valve. It will hold the water pressure in the RO storage tank while you are making RO/DI for your tank.

 

[ckoral]

I don't understand. A check valve does not fail at a certain pressure, then recover does it? I can see how this would stop the flow of water in one direction, but that's it.

http://www.happcontrols.com/vending/acesor/check.htm

 

[ckoral]

I found this but it is 30 bucks. Would this work?
http://www.chriscoffee.com/products/home/plumbingfittings/regulatorvalve

 

[ckoral]

http://www.coffeehit.co.uk/PRD_ProductDetail.aspx?cid=41&prodid=245&Product=Pressure-Regulator-Vavle

This is another one. I am just not sure if it is what I need and why so expensive.

 

[ckoral]

http://www.watts.com/pro/_productsFull_tree.asp?catId=64&parCat=284&pid=769&ref=2

 

[AZDesertRat]

The check valve will allow water to travel from the RO to the pressure tank and faucet but will prevent it from going back out to the RO storage vessel.
I used to have a similar setup to yours and eventually upgraded to a 14 gallon pressure tank so I could keep more water on hand.

 

[ckoral]

I just spent a whole bunch of time trying to explain why a check valve would not work, but then.... like a ton of bricks.... it hit me.

That is too easy. I was making it much more difficult.

Thanks!

 

[BeanAnimal]

 

[AZDesertRat]

Hey Bean:wave:

 

[ckoral]

I'm still laughing with dissapointment over my inability to think this one through on my own.

ha... a check valve. That is way simple.

I was thinking this would have been the best way to keep water in my family supply tank
http://www.youtube.com/watch?v=k5wJCzksT9k

 

[AZDesertRat]

That would work too! Maybe not quite as dependable as a check valve in clean water but close