Only use about 16 oz of bait per dispenser. That's about 1/2 quart or about 1/2 full. No need to fill them completely up. Also be sure that when you place them, they are set properly. Set them on a flat surface, and then rotate counter clockwise 1/2 turn. This releases liquid into the tension duct at the bottom of the base (rubber seal). Then set the set xxxx . If the base is too loose, liquid will overflow and leak out. If it is too tight, it won't release liquid. Use the arrows on the base as a reference. Let me know if you have any other questions.