My air conditioner drain hose was clogged with mud dauber gunk. I used a drain thingie (long narrow with little spiky things on the sides, usually used to clean hair from tub drains) to remove all the mud. It is still not draining. This is a 1990 TM 22 with a side AC unit. What should I do first to trouble shoot?
Air Conditioner isn't Draining
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