Bubble King Supermarin 250

[Jaws]

My Bubble King doesn't seem to be performing at it's best these days and I'm wondering if anyone else can help me with their experience. It works great for a few days and then stops producing foam at a good rate down to almost nothing. Eventually it ends up overflowing after about a week to two weeks. I got a Vertex skimmer head cleaner and still nothing. I thought that would increase production but its almost seemed to slow it. I noticed that the lid for the collection cup doesn't give much clearance for foam to overflow, maybe 3/8 of an inch at best but that still doesn't seem to account for why it consistently overflows after a couple weeks. Any suggestions?