RODI

Incoming water pressure is generally the biggest reason water production suffers. I bought the booster pump setup from the filter guys and it has made a huge difference in my water production, and the life of my DI resin. My tds after the RO went from around 28 to around 15 by bumping the pressure from the cities 42psi to 94psi. The other big production killer is temperature. I have not figured a good way to bring my incoming water temperature up to the mid 70's yet, but am still thinking about it.

 

my landlord has a HUGE booser pump in the basement.. i love it /site/DesktopModules/NTForums/themes/_default/emoticons/smile.gif

the toilet fills fast too!

 

I hope you mean the tank, with water, and not the bowl, with...

 

Posted By BGreenlee on 11/10/2007 10:55 PM
Incoming water pressure is generally the biggest reason water production suffers. I bought the booster pump setup from the filter guys and it has made a huge difference in my water production, and the life of my DI resin. My tds after the RO went from around 28 to around 15 by bumping the pressure from the cities 42psi to 94psi. The other big production killer is temperature. I have not figured a good way to bring my incoming water temperature up to the mid 70's yet, but am still thinking about it.
Have you seen Melevs method of heating the incoming water?  He coils a 25-50ft long tube in a 5g bucket with a small heater in it before it reaches the filter.

 

Thanks Lee, thats a good idea. I had not seen that, which is odd as I have spent a ton of time on Marc's site.
I will let you all know how it works out for me, I have a 100' coil of 1/4 tubing to do this with. I will run water as is till it stabilizes and then add the tubing and heater and see what I get.
Sorry for the hijack Kevin.

 

Posted By ryansholl on 11/11/2007 12:22 AM
I hope you mean the tank, with water, and not the bowl, with...
hahahaha
hillarious

 

Kevin,

To check the membrane you can pull the line off right after the membrane and test the tds at that point. You want it below 15 tds. You can also tell if your membrane is clogged if you notice a large drop in good water production. Take the listed output of your membrane and divide it by 24. Let it run for an hour and see how close you are to the optimum predicted output. Obviously it will be lower due to low pressure and temp, but you should still be in the ball park. When my membrane crapped out I actually went from 4-5 gallons per hour to 2.