What is a Reverse Osmosis System?
A. Reverse osmosis systems produce pure water by forcing untreated water or tap water through a semi permeable membrane. The membrane lets only water molecules pass through directing it to the units storage tank,, the impurities that are separated from the water molecules are forced down the drain. The system consists of both pre and post filters which add additional contaminant removal. For more information on Reverse Osmosis systems or Reverse Osmosis Installation.
It’s basically a simple water filter , they are in fact very efficient , however require routine maintenance . you will find ( if you have a system ) the unit under the kitchen sink , or your fridge may have an integrated unit . A lot of units are commercially available and replacement elements can be purchased , however some units may require manufacturer service .
look under the sink there should be a couple little tanks that are conected to the fridge and one to the little facit, it is a water perification system that cleans drinking water. they are very good and the large bottled water companys use them so keep it, you may need to call the company that made it for service.
Reverse osmosis is recovering unusable water in a well. So, you are right! you don’t have it with city water. Pressure drop is caused by a restriction. If you have changed the filter ( you didn’t mention it), then you might be crimping the water line when you push the frig back in to place. If you pull it out again, disconnect the line from the frig and run water in a bucket, if you have good pressure, then the problem is in the frig.