My only complaint: Lint blows out the top - through the cracks of the vent filter! WHY? It vents STRAIGHT OUT TO THE OUTSIDE - should the aluminum like hose be CURLED?>>>?
Lint backing up into a dryer is generally caused by improper air flow, which is caused (generally) by clogged ducting. If you say your ducting is flowing freely then you may still have a partial back up somewhere inside the dryer. Usually the blower fan area and/or the lint screen duct leading into the fan area can build up with packed lint. If you're not appliance savvy, dryers can sometimes be tricky to get inside. I recommend using a long lint brush to access those hard to reach areas of your dryer. To answer your other question, the ducting should be as straight as possible. Bends and kinks are often areas where lint will start to build up and eventually clog. The first sign that you're having dryer vent problems will be longer dry times on your clothes. I hope this will help.
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