Not trying to hijack but I am having the same problems.
Wouldn't the ro/di unit filter out the copper from the copper lines? Most older houses have copper lines. I am concerned as I have the same unit and all I Have is copper lines.
What do you mean by plastic to plastic on the connectors? I can't seem to get my connections to stop leaking.
help
Anyone know what to do with or how to use the pressure meter? I asked aquasafe and they told me to store it in my toolbox, ie. that it is useless, but their advertising says it is something you need and other stuff I have read implies the same. Just....there is nowhere to put the thing...