RO-DI units

[hangles]

this is another newby question
what does the DI do for the water quality and do you need it on your RO unit?

 

[LivingTropicals]

DI filter (de-ionized, de-mineralize filter), The DI filter removes remaining of dissolved solids after RO system.

 

[hangles]

then it would be a good thing to have! thanks

 

[LivingTropicals]

Yep. You would want to have an DI filter stage on your unit.