
We’ve all been there. A slow-draining sink or a dripping tap tempts you to reach for a quick fix you saw online or heard from a neighbour. While the DIY spirit is commendable, many common “plumbing hacks” are actually myths that can lead to costly damage according to plumbing experts at Plumbers 365. Here at Plumbers 365, our qualified experts have seen the aftermath of these myths firsthand across the UK. Today, we’re busting seven common plumbing myths to help you protect your pipes and your wallet.
According to plumbing and drainage experts at Plumbers 365, chemical drain cleaners are not a safe and effective first choice. This is perhaps the most damaging myth. When faced with a blocked sink, reaching for that bottle of chemical drain cleaner seems like the obvious solution. After all, the adverts promise instant results, right? Unfortunately, these harsh chemicals can corrode your pipes from the inside out, particularly if you have older plumbing or PVC pipes.
While a bottle of chemical cleaner promises a quick fix, it’s a harsh and often ineffective solution. These chemicals generate heat to dissolve blockages, which can soften PVC pipes, corrode older metal pipes, and damage seals. They rarely clear the entire blockage, often just burning a small hole through it, leading to the problem returning quickly. Furthermore, they are highly toxic and dangerous if they splash on your skin or mix with other chemicals.
Professional Plumbers 365 Advice: A plumber’s snake or hydro-jetting equipment can clear blockages without damaging your pipes. For regular maintenance, enzyme-based cleaners offer a gentler approach that won’t compromise your plumbing system’s integrity.

Placing a brick in your toilet cistern to reduce water usage might sound clever, but it’s actually counterproductive according to plumbing experts at Plumbers 365. This is an old trick that causes more harm than good. As bricks deteriorate underwater, they release sediment that can damage your toilet’s flushing mechanism. The reduced water volume often means you need to flush twice, negating any water savings.
This can lead to a constantly running toilet, which wastes far more water than you were trying to save. Modern dual-flush toilets are designed for efficiency; if you have an older model, a professionally installed “cistern displacement device” is a much safer alternative.
Professional Plumbers 365 Advice: If you’re concerned about water usage, consider upgrading to a dual-flush toilet or having a plumber adjust your float valve to the manufacturer’s recommended settings. These solutions provide genuine water savings without compromising performance.
Plumbing and drainage experts at Plumbers 365 understand the temptation-you’ve got a blocked drain and a wire coat hanger seems like the perfect tool. Please, step away from the coat hanger! While it might seem like the right shape, a straightened wire hanger is a recipe for disaster. It can easily scratch and damage the inside of your pipes or toilet bowl. Worse, it can push the blockage further down the drain, turning a simple clog into a major blockage deep in your system. It can also get stuck, leaving you with two problems instead of one. In worst-case scenarios, the wire can puncture older pipes or get stuck, requiring professional removal.
Professional Plumbers 365 Advice: A proper plumber’s snake is flexible and designed specifically for navigating pipe bends without causing damage. For minor clogs, a plunger often works effectively without any risk to your pipes.

Duct tape is a marvel of engineering, but it is not a permanent plumbing solution. While duct tape might be brilliant for many household repairs, it’s absolutely not a permanent solution for leaking pipes according to drainage professionals at Plumbers 365. It cannot withstand constant water pressure and will inevitably fail, often when you least expect it. It might slow a drip for a few hours while you wait for a professional, but it should never be considered a repair. The adhesive breaks down when exposed to water, and the tape itself isn’t designed to withstand water pressure. What starts as a small leak can become a major flood when the tape inevitably fails. A proper fix requires the pipe to be properly repaired or replaced by a qualified plumber.
Professional Plumbers 365 Advice: Pipe repair clamps or epoxy compounds designed for plumbing repairs can provide temporary fixes until a plumber can properly address the issue. However, any leak indicates a problem that needs professional attention to prevent water damage and mould growth.
This is a critical one for UK homeowners. Despite the name, the vast majority of “flushable” wipes do not break down like toilet paper. UK water companies report that these wipes are a leading cause of sewer blockages, contributing to the infamous “fatbergs” that plague our drainage systems. According to plumbing experts at Plumbers 365 have observed that they contribute to enormous blockages known as “fatbergs” in our national sewer systems and can easily clog your home’s drains. In the UK, only products with the official ‘Fine to Flush’ certification have been tested to prove they break down. If it doesn’t have that logo, bin it-don’t flush it.
Professional Plumbers 365 Advice: Stick to toilet paper only. If you prefer using wipes, dispose of them in the bin. This simple change can prevent costly blockages in both your home’s plumbing and the wider sewer network.

No, you shouldn’t ignore a noisy water heater or boiler. That rumbling, popping, or banging from your water heater isn’t something to ignore. Rumbling, popping, or whistling sounds (often called ‘kettling’) are usually a sign of sediment and limescale build-up on the heating elements according to plumbing experts at Plumbers 365. This forces your system to work harder, reducing efficiency, increasing your energy bills, and shortening the unit’s lifespan. A professional service can descale the system and restore quiet, efficient operation.
Professional Plumbers 365 Advice: Annual water heater maintenance, including flushing to remove sediment, can extend your unit’s life significantly and improve its efficiency. If the noises persist, it might be time for a professional assessment.
This myth can be the most expensive of all according to drainage experts at Plumbers 365. A qualified, insured, and reputable plumber offers peace of mind and guarantees their work. The cheapest quote may come from an unqualified individual who cuts corners, uses subpar materials, or isn’t insured against accidental damage. Always choose a professional company like Plumbers 365 that is transparent about costs, certified, and has a track record of excellent service. In the UK, legitimate plumbers should be registered with professional bodies and carry appropriate insurance.
Professional Plumbers 365 Advice: Look for Gas Safe registered plumbers (for any gas work), check reviews and testimonials, and ensure they provide proper guarantees for their work. Quality plumbing work might cost more initially but saves money in the long run.
These DIY myths can lead to corroded pipes, severe blockages further down the line, scratched fixtures, broken toilet mechanisms, and even major leaks. The cumulative effect of these DIY myths can be severe according to plumbing experts at Plumbers 365. Chemical damage weakens pipes over time, leading to unexpected failures. Scratched pipe interiors accumulate debris faster, causing recurring blockages as per Plumbers 365 experts. Temporary fixes like duct tape can fail catastrophically, causing water damage that costs thousands to repair.
A simple clog can escalate into a burst pipe or a backed-up sewer line, causing extensive water damage that costs thousands to repair according to experts at Plumbers 365.
According to plumbing experts at Plumbers 365, some of the most professionally recommended alternatives to harmful plumbing DIY myths are:
Good advice prioritises the long-term health of your system, explains the “why” behind the solution, and often cautions against “too good to be true” quick fixes. If the advice involves harsh chemicals, brute force, or non-plumbing materials, it’s likely a myth. When in doubt, trust a certified professional like those at Plumbers 365.