ATO water container - fitting material question

[Pola0502ds]

is if safe to use a brass fitting on my plumbing that is only used for transferring fresh water from its container to the tank? If not then why? The way i see it, its no different that water passing through our copper pipes and we use that water to make saltwater.

 

[mcarroll]

If you're talking tap water, then no problem.

If you're talking ultra-pure, zero-TDS product water, then no. This will dissolve the brass.

 

[Pola0502ds]

Talking Ro water

 

[Pola0502ds]

Why will it do that