I have some pooling of rainwater right at the edge of my lawn and concrete patio. I'm thinking the pool has gotten as large as 3-4 inches deep and about five feet diameter. The issue I've run into is during the winter it will pool and then freeze and I have a mini ice rink....and I don't ice skate! Is it enough to dig a drywell? I'm thinking if I dig a 12-18 inch diameter drywell about 5 feet deep the ground down there is warm enough to absorb the excess water and the well is large enough to take in all the water. Any thoughts?