Tap TDS 47! Wow that is nice and low. If I were you I probably wouldnt bother with RO having a TDS that low you could maybe get away with DI only and be able to produce pure water as fast as it will come out of the tap.
But anyway, even with no DI, 003 is well ok for use. I have used water up to 009 before with no problem, but only in an emergency and I wouldnt make a habit of it.
It will be ok