wrote:

Never heard that one but I fill up containers with water and let them
sit in the sun to evaporate the chemicals in the city water. I
usually leave them out 24 hours. Learned it from a neighbor - made
sense to me. Maybe that's what your neighbors are doing.

if the water get too hot, it might release some chemicals from the
container. the water would have a plastic taste too. not good.

only chlorine would evaporate. other chemicals still remain.

mj wrote:

I am not sure ( other than the typo) where that went. I was asking if
the water filled plastic jugs would keep deer away as well as the myth
about dogs.

I am condident that they will keep away myths about dogs but I cannot say
about deer as there are none hereabouts. They don't work for kangaroos if
that is of any help.

David

There is an burghal allegory that water-filled artificial jugs spaced strategically forth the edges of the garden will accumulate dogs from entering and/or peeing on accessible plants. It is not an uncommon practice in burghal areas but there absolutely is no accurate basis behind the theory.