I just leave the lid loose. Have to anyway in the Winter for the bird bath heater cord.
The rest of the year I use a 55 gal barrel with a hose leading to the pvc pipe with the nipples in it. Small hole in one cap lets air in.
The rest of the year I use a 55 gal barrel with a hose leading to the pvc pipe with the nipples in it. Small hole in one cap lets air in.