It is against the law to pump chlorinated pool water into the storm drain system. However, with permission, Mount Pleasant Waterworks (MPW) will accept pool water into the sanitary sewer system. To request to discharge pool water into the sewer, you can reach MPW's Customer Service Center at 843-884-9626. Customer Service personnel will need to know the dimensions of your pool and general sewer discharge location. For more information, please contact our Stormwater Office at 843-856-2157.