I am considering getting one of this now since I have built up a new 132g tank. Previously I only bought DI
water for my 20g. I have been keeping this 20g tank without any algae problem at all. I wish I continuing buying and using it but it will cost too much for my 132g in the long run.
I have a question: Must it have both RO
unit? Or just RO
or just DI
unit? I seemed to have problem finding only DI
unit but there are abundant of RO
unit. Is there any system that have both RO