Bag Filled With Water To Keep Flies Away. Then place these glasses of water around your table and even among the plates of food. Durable clear 1-gallon plastic zip-top bags work well but use the sturdy freezer-safe variety or double bag the water.
Some have said it magnifies the pennies resembling another insects eyes scaring the fly away while others say the clear liquid looks like the surface of a body of water which the flies perceive as a place they dont want to land. The water bag acts a bit like a lenstry it some timein which the movements of people in the area are reflected. How to Keep Flies Out Using Coins in a Plastic Water Bag.
No one yet knows how or why it works but there is speculation that it has something to do with the way the moving water refracts light.
Fly bags consist of plastic bags filled with water and often shiny pennies are added to further confound insects. To make your own fly repellent simply get a gallon-sized zip-loc bag fill it half to 34 with clean water and drop 3 or 4 pennies in the bottom of the bag. Mike explained that during his many years on the job the topic of hanging water filled bags to repel flies in barnyard and packing situations would come up every once in. The water bag acts a bit like a lenstry it some timein which the movements of people in the area are reflected.
