Wow. Mine is a Sears Kenmore (high end) unit. It cycles once a day based upon a programmable clock. It has a vacation cycle. It takes five bags to fill up, and I use about 5 bags every four months or so. What are the bags? 50 lbs?. So that is about 250 lbs every four months. My sediment fileter is the type you flush. Put a bucket below it and open it ever so slowly. It blows the sediment out the bottom ever so quickly...
We've had the RO system for a couple of days and everything tastes different. The coffee tastes way too strong, the ice has no after taste, and water is very clear. See my previous post regarding RO systems.
Here's to good tasteing water, and big healthy fish. Keep warm.
