Why Won't My Clogged Drain Clear?
Stubborn drain clogs that won't clear with a plunger or store-bought products usually indicate a deeper blockage, tree root intrusion, or buildup that requires professional equipment. If multiple drains are affected or the clog keeps returning, the problem is likely in your main sewer line, not the individual drain.
Common Causes
Grease and Fat Buildup
Cooking grease, oils, and fats solidify as they cool in pipes, creating sticky blockages that trap other debris. This is the #1 cause of kitchen drain clogs.
Hair and Soap Scum
Hair binds with soap residue to form tough clogs in bathroom drains. These accumulate over time and eventually block the pipe completely.
Food Waste
Even with a garbage disposal, fibrous foods (celery, potato peels), starchy foods (rice, pasta), and coffee grounds can accumulate and cause blockages.
Mineral Buildup
Phoenix's hard water leaves mineral deposits inside pipes that narrow the opening over time. This makes drains more prone to clogging and slower to clear.
Foreign Objects
Items that shouldn't go down drains, cotton swabs, dental floss, feminine products, 'flushable' wipes, often cause stubborn clogs that won't clear with a plunger.
Tree Root Intrusion
Tree roots seek water and can infiltrate small cracks in sewer lines. Once inside, they grow and catch debris, eventually blocking the entire pipe.
What Should You Do?
Try This First
- Try a plunger first, use a cup plunger for sinks, a flange plunger for toilets
- Pour boiling water down the drain (not for toilets or PVC pipes)
- Try a mixture of baking soda and vinegar, followed by hot water
- Use a drain snake or zip-it tool for hair clogs near the drain opening
- Remove and clean the P-trap under sinks (place a bucket underneath first)
Call a Pro If...
- Multiple drains are clogged or slow at the same time
- The clog keeps coming back after clearing
- You hear gurgling sounds from other drains
- There's a sewage smell coming from drains
- Water backs up in other fixtures when you use one
- Store-bought drain cleaners haven't worked after two attempts