There is about a foot of water in pool and I can not find hole. I was wondering if I put low pressure air under wall and put air at that point would it show ( or feel). I was thinking the space between wall and liner would have air gap. If hole is in bottom I do not think it would show or feel any air getting out. Have tried food coloring and no luck. Or would it cause more damage .

I have an old Teledyne Laars series 1 heater hooked into a natural gas line. I have never had an issue with the toggle switch that is located on the outside front of the heater that turns the heater on and off. Normally when you flip the switch on, the heater starts and the gas flows. Normally I can keep the heater on for hours and the outside switch is cool when I turn it off. Recently however a new pool vendor set up my heater for the new season and it took him almost a half hour to connect the heater tray and get it running. I had little faith he new what he was doing but he finally got it to fire up and I was relieved. I kept the heater on for about 2 hours but when I turned the on off toggle switch to off, it was red hot to the point that it felt like my hand was burned. Clearly I never had had this issue. The switch was never hot to the touch. Does anyone know if this is a serious issue or have a remedy? Thanks for any help on this. Stevie D [ATTACH]93918[/ATTACH]