I purchased the RO system about 2-3 months ago and loved it from the start. After using it for a while I felt my

Body was missing the minerals the system was removing. I

Contacted Sans and learned about the Oahu Electrolyte Concentrate. I purchased a bottle (even though pretty pricey) and started adding 2-3 pumps to each pitcher of filtered water. I noticed a difference right away. My body functions better along with my sleep patterns have improved! All in all, Sans is a real winner!! I feel all my research as to which one to purchase really paid off. I highly recommend Sans RO water filter system and only wish they could add the minerals back in without the additional expense.