Rob, thank you for the advice. I currently have an Aggressive Fish Only with
Live Rock and I'm thinking of eventually transforming it to include polyps. But this transformation is somewhere down the road. I will keep you posted about the pressure issues. Maybe a Podcast on
RO/DI units installation/troubleshooting should be considered for newcomers to the hobby such as myself if one has not been made. (I have yet to catch up with all the Podcast). Thank you.