Raxter54

We have a Bullfrog SPa model # 231. The problem we are having with it is that air bubbles are coming out of the jetpacks. Mostly this is just an annoyance, but when you turn the jets on high, the bubbles cause a white foam to spread acrros the top of the water. Does anyone have an idea what might be cuasing this? Is it the water chemistry, or could it be an air leak in the pump? Any help would be appreciated!