Most people, if they want water, they will turn on the faucet. Others prefer to titrate equivalents of hydrochloric acid and sodium hydroxide and filter out the salt. Saith the Washington Times:

The National Institutes of Health is dedicating $3 million to fast-track the development of drugs to treat marijuana addiction — an estimated 4.2 million Americans are hooked on cannabis — even as the president encourages its legalization and more states look to enact laws for its recreational use.