Hope you enjoy This is only in my opinion Remember if the pool has contained chlorine water you CANNOT USE IT AS A POND under any circumstances as the chlorine can remain in the pond.
Depends on how old the pool is and the quality of its construction. If the pool is quite old or poorly produced then I don’t recommend you use it as that could be and issue but a new or high quality pool won’t have this issue
Hi I’m only placing koi fry in here that are less then 1 inch in length so the heron shouldn’t be an issue however I will still do this to deter smaller birds thank you