Reverse-Osmosis (RO) Systems
All modern marine watermakers use the reverse-osmosis (RO) principle to produce pure, potable water from seawater - an approach where seawater is forced at high-pressure through a semi-permeable membrane that allows the passage of water molecules, but not salt, organic material or bacteria. The resulting freshwater is piped to the vessel’s water tanks and the remaining “brine” discharged overboard.
Reverse Osmosis System Problems
Without question, the majority of problems with RO watermakers are caused by lack of use.
If your reverse osmosis water filtration system does not seem to be working correctly, here are a list of possible problems you may be experiencing, and their possible solutions. Please understand that the solutions offered are given as a general guideline, and we strongly recommend that you consult your specific RO systems’ owner’s manual and/or contact us for a solution.
The most common problems for Reverse Osmosis Systems not working are:
Set tank pressure at 5-7 psi when empty
Check RO storage tank optimum pressure 5-7 psi when empty
Call for assistance – may require pressure pump
Turn water supply on
Replace pre-filter
Replace membrane
Remove crimp in line
Replace RO storage tank
Replace the flow restrictor that matches membrane capacity
Hold down refrigerator water dispensing handle for 2-3 minutes to draw water through system. If no water is produced check RO unit for water flow