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Mountain Water Co.

Drinking Water Systems

Reverse osmosis drinking water systems

A whole-home system is not designed to make drinking water. Reverse osmosis is — it pushes water through a membrane fine enough to strip out dissolved solids, heavy metals like lead, and the remaining chlorine. This is the water you drink, cook with and fill the coffee machine from.

A Mountain Water Co. tankless reverse osmosis unit with its dedicated faucet

Tankless Reverse Osmosis

Drinking water from its own kitchen faucet, with no storage tank.

Reverse osmosis takes out what a whole-home system is not designed to catch. The tankless build does it without the bulky pressure tank, so it fits in a cupboard that is already full.

Best for: Drinking and cooking water, where cupboard room is tight

Details and specs
A multi-stage reverse osmosis system with its pressure tank

Reverse Osmosis with Storage Tank

The classic under-sink reverse osmosis build.

A multi-stage reverse osmosis system with a pressure tank, feeding its own faucet in the kitchen. The tank means a glass fills at normal speed.

Best for: Drinking and cooking water, where there is room under the sink

Details and specs

Worth knowing

Why this matters

It filters to 0.0001 microns

Fine enough to catch lead and other heavy metals, dissolved solids and contaminants that a carbon filter alone will pass straight through.

Your coffee and ice change noticeably

The taste difference in coffee, tea and ice is the thing customers mention most. Cooking too — pasta water and stock genuinely taste different.

It replaces bottled water

A household getting through cases of bottled water a month usually finds an RO system pays for itself faster than they expected, and stops the plastic.

System info and pricing

Find the right water system

Call or fill out the form and tell us what you're seeing — scale, stains, a smell, city water or a well. We'll tell you which system fits your home and what it costs. There's no system that fits every house, and sometimes the answer is that you don't need one.

  • Call or fill out the form
  • City water or private well
  • Monongalia, Marion & Harrison