Topic of the Week 11/6 - RO/DI Filtration

[billyr98]

Here is a great topic, especially since I am changing my filters in my unit this week... We can talk about how often to change the filters.. What equipment to test with? How much pressure of water should be used on a unit?

How to store RO/DI?

Lots of questions!!

Plus more you guys can think of...

[Warnberg]

I change filters in my RO/DI unit about every 6 to 8 months, but this really depends on how much water it has made and the TDS of the water coming out of it. When the TDS show 5 ppm or higher I change the filters.

About the only piece of equipment I know of for an RO/DI unit is a TDS meter.

Pressure all depends on unit but I believe most want a operating pressure of around 70 psi for optimum performance. In other words if your RO/DI unit is supposed to put out 75 gallons per day, in order to accomplish this it needs a operating pressure of 70 psi and the water should be no less than 68 degrees.

I store RO/DI water in a rubber-maid garbage can, the can is rated as a food safe container, so it shouldn't leach anything into the water. I would think that any food safe container could be used to store water. I personally would not store water for very long, reason being is there is life everywhere and bacteria will find a way to live and grow in your water, even if you have it sealed.

Hopefully this is a good start to the conversation.