Flies at the Keezer

[Bullhawk]

I have a 4 tap keezer in my garage in NC and I plan on adding a pool table and a flat screen with some seating. Since I have built the keezer and placed into the garage I have had a terrible problem with flies around the keezer, my quetion is what can I do to control them. I have tried fly traps and fly strips and it hasn't gotten any better. What is everyone else doing with insects around there garage keezers?

 

[bendog15]

https://www.amazon.com/dp/B009D17Z5U/?tag=skimlinks_replacement-20

They use these around the bar at my hotel. They work awesome