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Unclog the Drain — Activate the Bladder

Beginner3 hours

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How to Use a Drain Cleaning Bladder to Clear a Clog · Step 4 of 6

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In this video

Insert the hose with the attached water bladder into the cleanout pipe. Feed the hose as far as it can go, pushing it towards the blockage. Once in position, turn on the water supply fully. Allow the water to run for approximately 10 to 15 minutes. The bladder will seal the pipe and the water pressure will work to dislodge and flush the soft clog down the line.

Goal: Use the water bladder to clear the blockage in the drain pipe.

  • The design of the cleanout should direct the hose away from the house, but confirm you are feeding it in the correct direction.

Used in this video

  • Drain King Water Bladder (brand: Drain King, Material: Rubber)To clear the clog.
  • Garden Hose (Material: Rubber, Durability: Heavy-duty)To supply water.
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FAQs

What are the essential safety precautions I need to take before and during this project?

Always wear safety glasses and waterproof work gloves to protect yourself from dirty water and potential splashes. Ensure the work area is well-ventilated and lay down old towels or tarps to contain any spills. Be mindful of the water pressure and avoid standing directly over the cleanout as water can spray out forcefully.

How do I choose the right size drain cleaning bladder for my main drain line?

Drain cleaning bladders are designed for specific pipe diameters, typically ranging from 1.5 inches to 6 inches. You must match the bladder size to the interior diameter of your drain cleanout pipe for it to work effectively and safely. Check the cleanout cover or consult your home's plumbing diagrams if you're unsure of your main line's diameter.

What should I do if the drain bladder doesn't clear the clog on the first try?

If the clog persists, try repositioning the bladder slightly deeper or shallower within the pipe and reactivate the water flow. You can also try increasing the water pressure incrementally, but never exceed the bladder's or your pipe's rated pressure. If after a few attempts it's still not clear, you might need to consider a different method.

Can using a drain cleaning bladder damage my pipes, and how can I avoid it?

While generally safe for most modern pipes, over-inflating the bladder in older, weaker, or corroded pipes can potentially cause damage. Always ensure the bladder is correctly sized for your pipe and avoid exceeding the recommended water pressure. If you feel resistance or hear unusual noises, reduce the pressure immediately.

Transcript
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I'm going to feed this drain flow out mechanism into the line. Sometimes you have to maneuver it around, but there it went, it went right through. So now the way that this is designed, and hopefully it's that way on all of them, it sends a shoot in with a 90 degree smooth angle like that. And then it feeds this hose into the part of the line going away from the house automatically. And you just keep feeding this in as long as it will go. Now I think it's important to have a thick, heavy duty type of hose because that keeps from kinking on you, and it gives it more strength to push through. So now you won't be able to see this part, but I'm going to go ahead and turn it on like we did in the demonstration. So what it's doing now is it's filling the water into the part of the pipe that's going away from the house, and it's also setting a seal so that no water will be coming back towards you or towards the house, it'll all be pushing out towards that soft obstruction. And I would give it 10 minutes, 15 minutes, and you can go listen to the other drainage outlet that you have, in my case, 150 feet from here, and you can hear it when that water starts pushing through for you. Okay, so I'm now walking to the second outlet that's about 150 feet away from the first one. And if you listen, you should be able to hear the sound of that water rushing through because I no longer have the obstruction.

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