A/C just started making a deep hum...
I installed a 2nd A/C in the bedroom last summer, a Mach 8. I replaced the fan blade to make it quieter and it's worked great all year. But just recently...just as you're turning the A/C on it sounds...
Forum Discussion
Use "foot pounds" in a lab and a foot will pound your rear right out to the time clock. The proper term used in my 40-years is pound inches and pounds foot. Feet whatever. This holds true in civil engineering, aeronautics, you name it...
