I'd need to go back and dig, but I thought the hot tub was emptied when LE arrived and was malfunctioning or needed service hence allegedly why he contacted the spa store owners. Many people made commentary about that alleged visit because it was during covid, but I remember thinking that while "stores" were closed in my small town business continued either out the backdoor or in the parking lot just not "in" the actual door which were supposed to be closed. Because I, too, originally thought about the hot tub...but then recall it was empty. That said perhaps he emptied it?
