One more thing, if you don't mind - sorry, I'm a total newbie! I also replaced the thermometer while changing the glad wrap, since the other one was doing funky things... the new one is reading 92 inside the tub, so I lowered the thermostat a notch to bring it down. Will that cause a problem, either from being at 92 for a while and/or lowering it now? And to clarify, I should be keeping the INSIDE TUB temps at 89, right??