what the different?

[Rp Marine]

what the different between distill and RO water would both of it work the same?

[Valclore]

RO is cheaper by the gallon than distilled, but not as pure!

[Ninong]

what the different between distill and RO water would both of it work the same?

You can use either one. Distilled water is purified by distillation (evaporation and condensation) and R.O. water is purified by being filtered through a carbon block and then squeezed through a semi-permeable membrane that only lets the smaller, water molecules pass through while blocking the larger impurities.