If you need to dump black and gray water or fill it up with fresh water, Ballinger, Texas has several options.Inks Lake State Park has a dump station as well as fresh water and a hose for flushing tanks. Twin Isles RV also offers dumping, flushing, trash disposal, and potable water but only for its guests. Sunset Point on Lake LBJ offers waste disposal for a small fee, while Sionito R.V. Park provides the same service to its customers.Remember to check the opening hours before heading out and bring cash or coins for any fees.