Every year, 1 add another set! These feeders have proven to be the best ones, for the birds, and for me to clean and refill. So simple The feeders do have a built in ant/bug trap that will prevent them from getting to the water, but I did end up buying some nectar guard tips, to prevent/flies from entering the feeder. So far they are working very well, and l only have to replace the water when it gets low, not contaminated. womenover40 hummingbirds hummingbirdfeeder birdwatching LTKOver40 LTKdayinmylife LTKmomlife