While having a pool enclosure adds convenience and protection from sunlight, bugs, and intrusive passersby, this structure does require some maintenance to keep it in top condition. You need to power wash your entire swimming pool enclosure periodically, using a combination of pressurized and lukewarm water. Power washing the enclosure should remove all stains, including mold, dust, and oily substances. If you encounter a tough stain on your screen, you can wipe the polycarbonate sheet and aluminum rods with a soft cloth or sponge. Staying on top of maintaining your aluminum pool enclosure will help it last longer and be more effective while letting you enjoy the surrounding scenery.