View Single Post
 
Old 09-21-2018, 04:21 PM
photo1902 photo1902 is offline
Sage
Join Date: Nov 2014
Posts: 3,223
Thanks: 1,607
Thanked 1,742 Times in 703 Posts
Default

Quote:
Originally Posted by Topspinmo View Post
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.
Definitely a valid concern when you don’t know what you’re inheriting.