Hey, it's better to "feel like a dumbass" then having to replace the whole unit. At least being a "dumbass" didn't hit your bank account too badly.
Don't beat yourself up, 6 filters? Who knew? I won't thread jack, but there is NO doubt I am on the "Dumbass award roster" at least in the Top 5. Don't get me started!! I can't even look at a furnace without breaking into a cold sweat.
