Installing a kiddie pool

Alex likes to be in water and play.Yesterday we finally bought a little swimming pool for him.I know he will gonna enjoy his bath now unlike before,it was just a little plastic tub.Right now,my husband gonna install the pool but we have a little problem,we don't have a pump :(,we only have a pump for the car,I don't know if it works.My usband decided to buy a pump for the little pool.Hope the weather will stay fine till afternoon so that Alex can enjoy much the pool.