1. Create a channel at the edge of the pitcher's mound with an edger or a spade. This channel should be made around the circumference of the mound. Once made, this channel should be maintained on a regular basis.
2. Sweeping the infield edges will prevent materials from building-up in the edges of the turf and causing a lip to form. To do this, take a broom or rake and sweep all loose materials lying in the turf back onto the mound. Then remove any grass that is swept onto the mound with a rake. If more than one person does this task it should not take any longer than a few minutes. The efforts will be worthwhile. Another option to prevent or remove lips is to use a garden hose and high-pressure nozzle and spray the soil out of the grass back onto the infield dirt. Spray at a 45-degree angle toward the infield. This can be a very effective way to remove more soil than hand raking lips.
3. If possible, cover the pitcher's mound. A tarp for the mound will help eliminate this problem. Covering the mound will protect the turf from run-off and will keep the mound moist and firm regardless of the climate.

Using a tarp to cover the mound will help hold moisture in the clay and prevent people from walking on the mound if they have access to the field. A mound that is left uncovered will dry out much faster and lacks adequate moisture to provide a surface that resists tear outs and holes.