That maybe the case for reusing with other types of liquids. At work my boss ordered a trial of one of those ultra purifying water systems. And everytime I and other coworkers refilled my water bottle it had a weird taste. It was said that the water was ultra pure and that it was potentailly leaching out some of the impurities in the plastic.
Bossman asked salesperson to remove the system, poor thing asked if she could demonstrate the purity of the product and talk to us about why we needed this system. Poor girl didn't realize there were a bunch of chemists (not me) not impressed by the pH and volt meters she brought. They went easy on her but the bottom line was that we didn't need or want that system.