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After years of clearing sewer lines and pulling out things that should never have been flushed, our plumbing team has heard every excuse and every myth. Our plumber Trey recently cleared a main sewer line in a Boiling Springs home where the blockage was a solid mass of “flushable” wipes that had accumulated over about 18 months. The homeowner was genuinely shocked — the packaging said flushable. Trey pulled out a wipe that had been in the sewer line for over a year and showed it to the homeowner: completely intact, like it had just come out of the package. Let’s set the record straight.
Myth: “Flushable” Wipes Are Safe to Flush
This is the biggest myth in residential plumbing. “Flushable” is a marketing term, not an engineering specification. These wipes do not break down like toilet paper. We’ve pulled wipes from drain lines that looked exactly the same as the day they were flushed – months later.
Wipes catch on pipe joints, tree roots, and rough spots inside your sewer line. They combine with grease and other debris to form massive blockages. Municipal wastewater treatment plants spend millions annually removing wipes from their systems.
The test: Drop a piece of toilet paper and a “flushable” wipe in separate glasses of water. Swirl them. The toilet paper disintegrates within minutes. The wipe will still be intact hours later.
The rule: If it isn’t human waste or toilet paper, it goes in the trash.
Myth: You Can Flush Cat Litter
Even “flushable” cat litter is a problem. Cat litter absorbs moisture and expands – the exact opposite of what you want in a drain line. It settles in low spots, hardens, and creates stubborn blockages. Additionally, cat waste can contain parasites (Toxoplasma gondii) that wastewater treatment may not fully eliminate.
Myth: A Little Bleach in the Tank Keeps It Clean
Dropping bleach tablets or concentrated bleach into the toilet tank corrodes the internal rubber components – the flapper, fill valve seals, and gaskets. These parts are designed for water, not chemical exposure. The result is a running toilet, which wastes water 24/7 and costs you on every water bill.
Better approach: Clean the bowl with a toilet brush and a mild cleaner. If you want continuous cleaning, use an in-bowl product that doesn’t sit in the tank.
Myth: If It Goes Down, It’s Fine
Just because something flushes successfully doesn’t mean it made it to the sewer. Many items get caught in the toilet’s internal trap, the closet bend (the fitting in the floor), or the first few feet of drain line. They may not cause an immediate backup, but they create a snag point that catches everything that follows.
Cotton balls, cotton swabs, dental floss, hair, bandages, and feminine hygiene products are all common culprits. Dental floss is especially problematic – it’s strong, doesn’t decompose, and wraps around anything it catches on, creating a net that traps other debris.
Myth: Hot Water Helps Flush Grease
Some people flush cooking grease down the toilet with hot water, thinking the toilet’s trap and wider pipe diameter make it safer than the kitchen drain. The grease still solidifies in the sewer line – just further downstream where it’s harder and more expensive to clear.
Fact: Your Toilet Uses More Water Than You Think
Older toilets (pre-1994) use 3.5-7 gallons per flush. Modern low-flow toilets use 1.28-1.6 gallons. If your home still has old toilets, upgrading saves thousands of gallons per year – and noticeably reduces your water bill.
A running toilet with a failed flapper can waste 200+ gallons per day. That’s 6,000 gallons a month that shows up on your bill.
Fact: Dual-Flush Toilets Save Real Money
Dual-flush toilets give you a choice: 0.8 gallons for liquid waste, 1.28 gallons for solid waste. For a family of four, that adds up to significant water savings over the year.
When to Call a Plumber
- Toilet clogs that don’t clear with a standard plunger
- Recurring clogs (same toilet keeps backing up)
- Multiple fixtures backing up simultaneously (indicates a main line issue)
- Toilet runs constantly despite flapper replacement
- Water pooling around the base of the toilet (failed wax ring)
YOUTUBE EMBED: Got High Water Pressure? This One Valve Fixes It FAST — @YallCallWally
Call Waldrop Plumbing Air Electric at (864) 536-0887.
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- Runnin’ Out of Hot Water → https://www.callwaldrop.com/blog/runnin-out-of-hot-water-lets-figure-it-out-with-wally-upstate-sc/
- How Does Hot Water Get Through the Whole House → https://www.callwaldrop.com/blog/how-does-hot-water-get-through-the-whole-house/
- Why Does My Drain Keep Clogging → https://www.callwaldrop.com/blog/why-does-my-drain-keep-clogging/
