in a hot summer day if you close all the door your dog could get heat stroke. don't you hate it when people walk into your pictures? i spent most of the year kind of awkwardly acting as a robot/human tape recorder at the will of my teachers. this is a great value pool without breaking the bank. thanks a lot for your instructions and sorry for my late reply. i love how you built up to the letter. that opens the mind of wrench boy. spread 2-3 inches on shrubs, trees and/or bushes. 