Yes you can use soap and water to clean Bowling balls. However there are several products on the market made for cleaning the surface that will do a much better job. Your local pro shop should have them as well most sporting goods stores. There is also a link below which you use to order online.
http://www.buddiesproshop.com/products/28/CleanersPolishes.htm
Used inert alumina balls can be cleaned by soaking them in a mixture of warm water and a mild cleaning agent, such as dish soap. After soaking, scrub the balls gently with a soft brush to remove any dirt or residue. Rinse the balls thoroughly with clean water and allow them to dry completely before reuse.
Soap and water.
PUT THEM IN WATER AND SOAP
You get some kind of clean water, soap, and something to clean it with.
water and soap.
Plain soap and water followed by a rinse in warm water.
It is always important to keep things clean with hot water and soap.
soap and water
soap and water
cold water and soap
Soap and water.....
Use soap