thanks again everyone. i'll suggest the mirror/curtain/tint to him. meanwhile, i drove almost 20 hours in the last 2 days to pick up a puppy. on my way, i got a phone call from the gym owners wife. she told me that the return pump was gurgling (it had evaporated to the point of being exposed to air, and no one filled it), and she wanted to know what to do. i might have to re-evaluate my contract and charge accordingly.