Has anyone experienced this:

You soak your potted plants and the surface of the soil is wet. But dig down not even half an inch and the soil is still bone dry.

Mainly seeing it in potting soil that is a couple years old. You can water all you want but it drains down and out of the pot and the soil underneath the surface retains no moisture.

I am watering until the pot overflows with water several times with same result. I think this lack of moisture is killing many of my plants.

Not able to find anything on Google but I am sure others have seen this phenomenon. Any help, besides repotting with new soil? Thanks

- Adam