They can provide 10 or more gallons of drinking water a day. A reverse osmosis system costs $150 to $300, ... How to recharge a reverse osmosis holding tank Check the tank's empty pressure.

Home reverse osmosis systems are becoming more popular in central Iowa as nitrates affect public drinking water supplies.

Once completed, the Northwest Water Treatment Plant will give Brunswick County residents a cleaner water supply by treating more than 36 million gallons of water per day using reverse osmosis.