I have a 2004 Viking II spa. Last winter (Michigan) the controls started acting up. The heater seemed like it was on all the time. No matter what you set the temp to it was 110 deg. It got to the point I just drained the spa and it has been empty for the past year. Just before that I had to put a new bearing in the pump motor. I would like to do a complete control pack and also upgrade to a second circulation pump and a new ozonator. The spa has a 2 speed motor but it still uses too much power in the winter and I think the additional lower powered circulator would be more economical (my electric bill went down ~$75 a month after I turned it off.) Also, the filtration does not seem to do well. The spa has 2 floor water intakes besides the filter skimmer. So my questions are: how can I force more water through the filter skimmer and what would be the best way to go on a control pack?