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materials tend to expand when they get hot, and that is true for sewer pipe material as well. Whether it's cast iron or ABS, the pipes will try to expand when they get hot and when they try to get longer they'll slide across wood or other materials. The "knocking" noise is the pipe fitting tightly against the wood and when the pipe has expanded enough it moves suddently and for a short distance, producing a "pop" type of sound. If you can expose the pipe you can cut out the wood where it is tight and possibly put in other material so that the pipe doesn't rub so hard.
What else can I help you with?
Features drains metal pipes etc?
The drain metal pipes are usually coated and galvanized because of the hard water.
What is an over flow drain?
They are secondary drains that work in tandem with the primary pipes to prevent overflows.
How do scorpions get in drains?
Scorpions can enter drains through cracks or openings in the pipes or through drain covers that are not securely fitted. They are attracted to dark, damp environments and may accidentally fall or crawl into drains while searching for shelter or food.
How effective is drain snaking in clearing clogged pipes?
Drain snaking is generally effective in clearing clogged pipes by breaking up and removing blockages. It is a common method used by plumbers to address clogs in drains.
What are some common causes of blocked pipes and how can they be prevented or cleared?
Common causes of blocked pipes include the buildup of grease, food particles, hair, and mineral deposits. To prevent blockages, avoid pouring grease down the drain, use a drain strainer to catch food particles, and regularly clean drains with a mixture of vinegar and baking soda. Blockages can be cleared using a plunger, plumber's snake, or chemical drain cleaner.
Why does the toilet slowly drain?
The toilet drains slowly when there is a blockage in the pipes, a clog in the toilet trap, or a malfunction in the flushing mechanism.
What cleaner is best for rust removal in drains?
Nothing dissolves rust in drain pipes. Once pipes become so old and rusty that they constantly keep blocking up, its time to replace and install PVC waste pipes.
Is there a product I can put in the drains to clear pipes of hairs?
Drain-o works very well. You can find this product at your local grocery store.
Why does my dishwasher drain into the sink?
Your dishwasher drains into the sink to connect to the existing plumbing system in your kitchen. This allows the dirty water from the dishwasher to be efficiently carried away through the sink's drain pipes.
Why do my drains smell and how can I get rid of the unpleasant odor?
Drains can smell due to a buildup of food, grease, or bacteria in the pipes. To get rid of the odor, you can try pouring boiling water down the drain, using a mixture of baking soda and vinegar, or using a commercial drain cleaner. Regularly cleaning your drains can help prevent the unpleasant smell from returning.
How can I prevent pipes from knocking in my home?
To prevent pipes from knocking in your home, you can try installing water hammer arrestors, securing loose pipes, adjusting water pressure, and insulating pipes to reduce vibrations.
What are the possible causes of bathroom drain smells and how can they be effectively eliminated?
Possible causes of bathroom drain smells include a buildup of hair, soap scum, or food particles, as well as a clog in the pipes or a lack of proper ventilation. To effectively eliminate these smells, you can try using a mixture of baking soda and vinegar, pouring boiling water down the drain, using a drain snake to remove clogs, or using a commercial drain cleaner. Regular cleaning and maintenance of the drains can also help prevent odors from returning.
