RO unit ? no TDS meter

[the-bubonic-one]

Bought a RO/DI unit this week and did not realize I needed a TDS meter. Got one coming on Tuesday but need water. Is it safe to hook the RO unit up without one for a week? Then plumb it in. Its city water. Any help is appreciated.

 

[the-bubonic-one]

new unit

 

[dme330i]

I would use it.

 

[the-bubonic-one]

BRS. I'll do that test