5 Common Plumbing Mistakes 2021!

5 Common Plumbing Mistakes 2021!

5 Common Plumbing Mistakes 2021!


With a few specific tools and a little elbow grease, you can complete the majority of household plumbing repairs and even update plumbing fixtures on your own. Physical exertion is not required for this job. However, you must be familiar with the distinctions between the various types of pipes, fittings, glue, and solder since this is an area in which many DIYers make common mistakes! 

Other typical mistakes made by DIYers include failing to use the proper parts and failing to follow instructions. Here’s how to avoid making the top five most frequent plumbing blunders and complete the task correctly the first time.

1. Constantly overtightening connections

The most common mistake made by DIYers is overtightening supply tubes, pipe and fittings, and toilet bolts. It is possible to break a galvanized or black pipe, coupler, tee, or elbow if the fitting is turned too quickly or with too much force. Although the fracture may not appear immediately, the extra stress might cause the fitting to fail weeks later, resulting in a flood.

Even more widespread is the practice of overtightening the plastic fittings on the supply tubes for toilets and faucets. When it comes to sealing a supply tube, you don’t need a lot of torque. Eventually, if you tighten the hex nuts too much, they will crack and leak. In addition, overtightening toilet closet bolts at the floor or between the bowl and tank might shatter the porcelain and cause the toilet to malfunction or break.

2. Wrapping thread tape around itself backwards or using the incorrect tape

For PTFE thread tape (also known as Teflon tape) to function effectively, it must be wrapped around the threads in a clockwise direction. However, many do-it-yourselfers wrap the tape backwards, causing the tape to unravel from the threads as they tighten the fitting. Because thread tape cannot seal until it is imbedded in the threads, this negates the point of employing it in the first place.

Here’s some advice on how to properly wrap them: As you screw the pipe into the fitting, wrap three times around the threads, with the last wrap facing to the left. Keep wrapping until the last wrap is pointing to the right, then stop and re-wrap.

3. Choosing Drain Cleaners as a First-Rate Option

The most effective method of removing blockages from kitchen and bathroom sinks, is to use a snake or a barbed drain cleaning equipment. Alternatively, you may just remove the P-trap and drain the blockage. The problem is that far too many DIYers grab for the liquid drain cleaning first and pour far more than the manufacturer’s instructions. 

That’s a mistake since liquid drain cleaning isn’t the ideal option, and it’s much less effective when used in combination with other products. In fact, liquid drain cleaning has the potential to cause more issues than it fixes. This is due to:

  • You or your plumber will most likely have to remove the trap arm later on, and the trap arm will be filled with caustic-corrosive drain cleaner.
  • It’s possible that you or your plumber may have to remove the trap arm if the liquid cleaning doesn’t eliminate the obstruction.

Isn’t that going to be entertaining?

Drain cleaner used in excess, or used too frequently, can cause corrosion in metal traps and pipes, resulting in leaks.

In “mission” style couplings, liquid drain cleaning might damage the rubber gasket that is used to seal the couplings. If you have any of those couplings in your drain lines and you use liquid drain cleaners, you will cause them to get damaged, which can result in leaks in the future.

4. Attempting a plumbing job without the necessary spare parts

When it comes to faucet repairs, many do-it-yourselfers make the error of purchasing only a cartridge or washer. However, if the washer or cartridge are worn, there is a good likelihood that other faucet parts are also worn. Unless you replace the stem seal, gasket, and O-rings along with the washer or cartridge, you will almost certainly end up with a leaking faucet. 

Another trip to the hardware shop and another faucet disassembly/reassembly will be necessary as a result of this. Because those peripheral pieces are inexpensive, make it a practice to purchase them all at once and “rebuild the faucet” rather than simply replacing a single component.

In the case of drain lines, the same rule is applicable as well. Check that you have enough rubber compression gaskets to replace the gaskets in every joint that you will be removing if you will be disassembling a metal p-trap and arm. It is possible to reuse the beveled poly washers that are used on PVC traps and arms; however, you should have a few spares on hand in case you lose one or discover that the previous one has been broken.

5. Leaving the water running is a bad idea

Many do-it-yourselfers believe that they can simply leave the water running while swapping out a new valve. Yeah, that seldom works out for the best. The entire water pressure will flood the room and trickle down to the lower levels if you are unable to install the replacement valve or faucet in time. 

Is it really worth it to risk thousands of dollars in property damage when it only takes a few more minutes to turn off the main water supply valve? Plumbers with years of experience turn off the water. You should do the same.

The Bottom Line

So, as we have seen above, that beginners or newbies or DIYers try to fix their plumbing problems and often end up making the situation even worse. So, its highly recommended that you take the help of a good experienced plumber before handling such complex plumbing situations alone.

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