I did a little research and I can’t find any information about not storing DI in the pressure tanks with the food safe bladder so I think that’s bad information that I was told and I’m sorry I passed it along. Though yes you don’t want to drink DI water anyway. There’s a debate as to whether RO water is good for you but I think that’s a personal decision that should be made. My well water is pretty gross so I’m going to keep drinking my RO water.
One thing I did learn is that there is an advantage to adding a permeate pump to your system before the pressure tank, because as the pressure in your pressure tank increases it will add backpressure to your membranes which will decrease their efficiency. A permeate pump will mitigate that occurring and since it is operated hydraulically via the waste water, you’re not having to shut down the pump electrically via a pressure switch.
One thing I did learn is that there is an advantage to adding a permeate pump to your system before the pressure tank, because as the pressure in your pressure tank increases it will add backpressure to your membranes which will decrease their efficiency. A permeate pump will mitigate that occurring and since it is operated hydraulically via the waste water, you’re not having to shut down the pump electrically via a pressure switch.