1.   Bojangles fast food chain switches its fountain business to Pepsi from Coca-Cola.

2.   But despite those changes, Pepsi has had difficulty increasing its share of the fountain business.

3.   It also controls most of the fountain business.

4.   Pepsi has been aggressive on many fronts, including the highly competitive fountain business.

5.   Pepsi contends that as it slowly began to build more clients in the fountain business last year, Coke aggressively tried to curtail its competitor.

6.   Ruby Tuesday restaurant chain switches its fountain business to Coca-Cola from Pepsi.

7.   Solomon also expressed concern that Coca-Cola may lose some profit from its high-margin fountain business as rival PepsiCo Inc. competes more aggressively in that market.

8.   The legal battle highlights how important the fountain business has become for both giants.