When water demand goes down at night, the pump can replace the water in the tower. Also, if the power goes out and the cityâs water pumps fail, the water tower can keep water running smoothly for at least 24 hours.
WI - Wisconsin. 1  NY New York. 2  DC District of Columbia. 3  NC North Carolina.  NM New 1  Mexico. SC South Carolina.  ND North 1  Dakota. NJ New Jersey.  NH New 1  Hampshire. WV West Virginia.  SD 1  South Dakota. RI Rhode  Island. PR 1  Puerto Rico. VI Virgin  Islands. AS American Samoa.
The state name is a link to the traffic laws of the state, or maybe to the general legislative information page, or maybe to the state home page. If the state doesn't have useful information online or I got tired of typing there is no link.