View Pennies In Water To Keep Flies Away Pictures. Learn why people might hang bags of water to keep flies away and if the practice works. Another way to do it is find strong i cannot figure out or remotely hypothesize, how pennies (coins) in water can keep flies/ mosquitoes away.
Just mix some water with apple cider vinegar and spray them.
Stir this mixture to blend it all together. This rumor has been circling the web for years, and people have been using it to scare away flies for even longer. There is no exact amount it just keeps the pennies shiny. The water reflects light in many different directions which interferes with the flies' vision.