My diverter tub spout is dripping. What is causing it to drip and how do I fix it? There is only one handle to turn the water on/off. It is a Delta Monitor. I've made sure the water is turned completely off and it still drips. If I pull the diverter button up , the shower head drips. From what I've read on different websites it looks as if it is a slip on spout because there is a hole underneath close to the wall. Any suggestions? Thanks

The cartridge or washers are leaking. I believe the Monitor uses a 1300 series cartridge so check locally for availability. Once you have the replacement come back here and ask for help if you need it. There are several here who can/will be happy to assist you.