We want to start this off by saying, even if your drain clog isn’t “stubborn,” it’s never a good idea to use store-bought liquid drain cleaners to resolve the issue. Sure, you’ve probably used it in the past and had “success,” but that success may have meant relieving the clog for a few months until it came back again—and you had to buy more drain cleaner!
In fact, some of these store-bought solutions even state in the instructions that you may have to use them again. That’s because they don’t actually remove the clog. They break through it so water flow gets back to an acceptable level for a while. But then the clog builds back up. What’s worse, these solutions contain corrosive chemicals, and persistent use is going to lead to Sterling, VA plumbing problems down the line.