How do you unblock an outside drain U-bend?

You can start by using the same methods you’d try for clearing an inside drain blockage.

  1. Pour boiling water down the drain.
  2. Add a cup of bicarbonate of soda.
  3. Now add a cup of vinegar and watch it start to fizz and froth.
  4. Replace the drain cover loosely and let it work its magic for a few hours.





How do you clear a blocked outside drain?

Use a drain plunger. Pour down a mix of baking powder and vinegar, followed by hot water. Use a drain snake or unbent wire coat hanger. Unscrew the U-bend and physically put out any blockages you see.

Why does my outside drain keep blocking?

If your drain is outside it will most likely have been caused by a build-up of dead leaves, or even tree roots which can find their way into pipes and cause a barrier to the flow of water. If it’s an indoor blockage, it could have occurred because of heavy materials or objects being flushed down the drain.

How do you unblock a S bend?

Quote from the video:
Quote from Youtube video: What you need to do is undo these two nuts. Like shell in that clockwise fashion. Tip excess water you may need to unblock whatever is in the u-bend.

Will soda crystals unblock an outside drain?





If your drain isn’t completely blocked and is still slowly draining, you can consider using soda crystals or caustic soda to clear your blockages. This method is particularly effective against grease and fat blockages but less effective against other types.

How do you snake an outside drain?

In order to snake a drain from outside, start with the right tool – a long manual or powered drain auger. Feed the head of the snake and connected cable through the cleanout drain, located outside in the yard until you reach the drain (taking corners into account if applicable).

How do I know if my outside drain is blocked?

Signs associated with a blocked drain can include:

  1. Unpleasant odours coming from drain. Blocked drains tend to emit foul/ unpleasant odours. …
  2. Slow drainage. If there is a blockage present in the pipe, any water will drain slowly. …
  3. Raised water levels. …
  4. Gurgling sounds.


How do you clean a basin U-bend?



Begin removing any debris/blockages within the U-Bend. This can be done with a number of tools such as metal coal hanger, snake pipe or wire brush all proven blockage removers. If you’re satisfied it is now clogged free begin running the U-Bend under a tap ensuring it is clean and ready to be installed back.

How do you clear a choked drain pipe?

How to Clear a Blocked Drain

  1. Boiling Water. For a quick and easy fix for your blocked drains, try pouring a pot of boiling water into the drain. …
  2. DIY Natural Cleaner. You can create a DIY drain cleaner using bicarb soda (baking soda) and white vinegar. …
  3. Caustic Cleaner. …
  4. Plunger. …
  5. Snake and CCTV. …
  6. Hydro-Jet. …
  7. Excavation.


What is the best chemical to unblock drains?



These are the best drain cleaners, according to testing:

  • Best Overall Drain Cleaner: Drano Max Gel Liquid Clog Remover.
  • Best Drain Cleaner for Hair Clogs: Liquid Plumr Clog Destroyer + Hair Clog Eliminator.
  • Best Single-Use Drain Cleaner: Green Gobbler Drain Opening Pacs.
  • Best Enzymatic Drain Cleaner: Bio Clean.

Should outside drains have water in them?

The first answer is YES: Your sewer drains should hold water in certain locations. The reason for the water in the drainage fixture is to prevent rodents and smells entering the building. For example a toilet pan has water in its bowl always this is to prevent foul smells entering the building.

How long does caustic soda take to unblock a drain?

A Caustic Soda Drain Cleaner Is a Drastic Solution



When you add a cup or two to a gallon of water, the mixture heats up quickly and begins to fizz. If you pour the mixture into a clogged drain, it should work through the clog in 30 minutes or less.

What acid do plumbers use to unclog drains?

Hydrochloric acid



Hydrochloric acid, otherwise known as muriatic acid, is commonly used by plumbers around the world to clear a clogged rain. It is a strong acid that can cause serious injury if it is not used with care.

Does caustic soda damage drains?

In the case of plastic pipes, the caustic materials can cause a chemical reaction, which produces heat and can melt or warp the pipe. In addition to causing pipe damage, drain cleaners can also cause serious injury if not used properly.

Can bleach unclog a drain?

Bleach Will Clean Your Drain, Not Unclog It



Bleach isn’t going to unclog your drain any more than pouring a glass of water down the sink. Bleach is great for sanitizing your sink and drain and killing smelly germs; it will not break down clogs.

Will Coke unclog drains?

Coke. Coke is a lesser-known fix you can find in your refrigerator. Pour a 2-liter bottle of cola — Pepsi, Coke, or generic brand substitutes — down the clogged drain. Coke is actually quite caustic and effective at clearing away buildup in your drains, but it’s far milder than commercial drain cleaners.

Will vinegar unclog a drain?



If you suspect a grease clog, a mixture of very hot water and vinegar can also help melt and remove the grease that’s blocking the pipes. Allow it to work for a few minutes, then use a plunger to help move the clog along.