Water is coming from both the tub spout and shower head in both showers. They are both delta faucets. We have replaced one diverter valve to see if that was the problem, however, no difference. The faucet is a single lever faucet with a push in diverter. Any suggestions?

Water is coming from both the tub spout and shower head in both showers. They are both delta faucets. We have replaced one diverter valve to see if that was the problem, however, no difference. The faucet is a single lever faucet with a push in diverter. Any suggestions?
As you can see by the image I've put up the diverter assembly's a simple one. Just a flap on the end of a rod that seats to prevent water from coming out the spout. The flap isn't seating correctly due to mineral build up or crud in the seat. Go back in and clear the seat and then turn the water on for a second to flush out the crud that you have cleaned out. Good luck, Tom