Yo Xerox ... your gripe is my gripe
... my spa flex just perfectly went through the "heater hole" that the guy drilled through, when I mean perfect I mean it sits in there super snug right past the rib of the hosing. Then I ran into the problem of ... oh sh!t Seio Cord ... I took a small curved hobby file and actually filed away a small nook for the cable to hold in place snug ... it worked like a charm because it
"finely" filed away at the tank which will keep it from cracking.