I was opening the pool last weekend and the heater plugs and opening are badly rusted and one completely stripped. Right now I am unable to run my system because it is not plugged. I would like to just get through the summer with the heater and replace next spring. My buddy tried to weld it closed but had a problem with the welder. So now I am think to add a bunch of JB Weld to seal that opening off. Any other suggestions before I go ahead and go this route? Not sure if there are other plugs that I could use that would hold up to the pressure. Any help would be appreciated.