pure water, llc. is a leading water treatment and purification company selling all types of water treatment and purification equipment throughout the world. pure water, llc. offers the latest water treatment technology, engineering and design. from water softening, water filtration of all types, reverse osmosis, desalinization, ultra violet bacteria control, chemical feed and ozone purification. pure water services commercial and residential customers alike. pure waterã¢â‚¬â„¢s global water treatment division is known as international water solutions, llc., (iws). iws is a reverse osmosis and desalinization manufacturing company located in los mochis, mexico. commercial reverse osmosis and desalinization equipment is designed and engineered to produce clean fresh water from the earthã¢â‚¬â„¢s oceans. our reverse osmosis units will produce from 1,000 to 10,000,000 gallons of pure water per day. our reverse osmosis and desalinization units are designed to meet the global need for clean fresh water.