A sodium water softener in front of your RO system is actually better on the membrane least that's what
@Mañ'O'Green
"A salt
water softener in front of the
RO system will help the
RO membrane last longer. What happens is the salt globs on to the calcium, carbonates and other smaller ions and it makes the total molecule much larger and easier for the
RO membrane to filter them out with fewer small Ions clogging"