Reverse Osmosis Water Filtration in San Ramon & the Tri-Valley

A reverse osmosis system pushes tap water through a semi-permeable membrane under pressure. The membrane blocks dissolved solids, sediment, and many other contaminants from passing through, while filtered water passes on to a small storage tank under the sink. Most systems also include pre- and post-filters — typically sediment and carbon stages — to catch particles and improve taste before and after the membrane stage.

No. A water softener treats your whole home's water supply and is focused on removing hardness minerals like calcium and magnesium. A reverse osmosis system is typically installed at a single point of use — usually the kitchen sink — and filters water more broadly for drinking and cooking. Many homes use both: a softener for the whole house and RO for drinking water.

Yes, in most homes we can run a line from the RO system to a refrigerator or ice maker so you get filtered water and ice from the fridge as well as the sink.

It depends on the system and your water usage, but pre-filters and membranes do need periodic replacement to keep the system performing and the water tasting right. We'll walk you through the specific schedule for whatever system is installed in your home.