What should be done to the reverse osmosis when I’m going away on vacation?
The length of time you are gone is the determining factor. If you are going to be gone for more than 30 days the system will either need to be drained and allowed to refill this is best if done every two weeks, or the membrane removed for cold storage in the refrigerator. If you leave for the summer it is best to shut the system down and remove and discard the filters, have the unit serviced when you return. if you are gone less than 30 days there is no need to do anything except shut the unit off if you wish to. Upon your return drain the tank and allow it to refill.