Marine Water Conditioner to filtered water?

[sdergar]

I think I've asked this before but I just wanted to make sure. I'll be purchasing an RO/DI unit shortly but in the meantime I've been buying filtered water from Walmart, from Culligan systems locally, and I'm not sure if I have to put Marine Water Conditioner in it. I don't think I do but just incase. As for RO/DI water I don't need any in there either...right? Thanks...

Steve

[Floyd R Turbo]

RO/DI is ultra-pure so no need to condition it. Besides adding salt but duh.

[sdergar]

Thanks Floyd. What about just the filtered water? And does adding it hurt anything?

Steve