Quote:
Originally Posted by Topspinmo
IMO Pouring vinegar down may reduce growth, but on older units over time dust and rust builds up from years migrating down from the A-coil. Majority don’t live in house 10 to 15 years plus long enough to experience problem. It’s usually the 2nd or 3rd owners.
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Definitely a valid concern when you don’t know what you’re inheriting.