When you need to temporarily block your bathtub drain—whether it’s for a DIY project, a relaxing soak, or even for a quick fix while waiting for a plumber—you don’t always need specialized tools. Many homeowners and businesses in Pittsburgh can easily block their drains using everyday household items.

In this guide, we’ll walk you through how to effectively block your bathtub drain using simple, commonly available materials you likely already have at home. No need for expensive equipment or a last-minute store run!


Why You Might Need to Block a Bathtub Drain

Blocking your bathtub drain is useful in several scenarios:

  • Cleaning and soaking: Need to soak your tub for cleaning? Blocking the drain keeps water (and cleaning agents) in the tub.
  • Prepping for repairs: If you’re waiting for a plumber to repair your plumbing, blocking the drain can help manage water flow temporarily.
  • Water conservation: Some people block drains to avoid water waste while cleaning other items or to collect greywater for gardening.
  • A relaxing bath: Of course, a blocked drain is essential for that well-deserved soak after a long day!

Let’s jump into the step-by-step guide for using household items to block your bathtub drain.

 

Step 1: Gather Your Materials

Here’s a list of items that can easily block a bathtub drain:

  • Plastic wrap
  • A washcloth or small towel
  • A rubber or silicone lid
  • Plastic bag filled with water
  • Suction cup or silicone kitchen tool

You’ll want to choose one item from the list, depending on what you have at home and what works best with your drain type.

Step 2: Clean the Drain Area

Before blocking the drain, it’s a good idea to clean the surrounding area. Removing any hair, debris, or soap scum will allow the seal to form more effectively, ensuring less leakage. Wipe down the surface of the drain and around it to maximize the effectiveness of the item you’ll use to block it.

Step 3: Block the Drain

Method 1: Using Plastic Wrap

Plastic wrap is surprisingly effective for temporarily blocking a drain:

 

  1. Tear off a large piece of plastic wrap, big enough to cover the drain and a few inches around it.
  2. Press the plastic wrap firmly over the drain opening, smoothing it down to create a seal. You can add a weight (like a bottle or heavy object) on top for extra security.
  3. Fill the tub with water to check if the wrap holds the water. If done right, this method creates a strong temporary barrier.

Method 2: Using a Washcloth or Towel

A washcloth can provide a soft and reliable seal:

 

  1. Fold the washcloth or small towel into a thick square, ensuring it’s big enough to cover the drain.
  2. Place the folded cloth directly over the drain.
  3. Pour a little water over the cloth to help weigh it down and form a barrier. You can also press down firmly to ensure a snug fit.

Method 3: Using a Rubber or Silicone Lid

Silicone lids for containers or bowls can double as a drain cover:

  1. Choose a lid slightly larger than your bathtub drain.
  2. Place the lid over the drain opening and press down to create a suction effect.
  3. Add water to test if it holds—these lids often create an airtight seal, making them great for temporary blockages.

Method 4: Using a Plastic Bag Filled with Water

This method uses the weight of water to block the drain:

  1. Take a plastic sandwich or freezer bag and fill it halfway with water.
  2. Seal the bag tightly, ensuring there’s no leakage.
  3. Place the bag over the drain, pressing down to create a seal. The weight of the water-filled bag will prevent water from escaping down the drain.

Method 5: Using a Suction Cup or Silicone Kitchen Tool

If you have suction cups or silicone items like baking mats or pot lids:

  1. Press the suction cup or silicone tool directly onto the drain opening.
  2. Ensure it creates a tight suction to hold water in the tub.

Step 4: Test the Blockage

Once you’ve placed your chosen item over the drain, test the blockage by slowly filling the tub with water. Make sure there’s no significant leakage. If there is, you may need to adjust the placement of the item or try a different method for a tighter seal.

Step 5: Remove the Blockage

When you’re ready to drain the tub, simply lift the item you used to block the drain. Be cautious with items like plastic wrap or towels, as water pressure can make them harder to remove.

Final Thoughts

While these household methods are excellent quick fixes for blocking your bathtub drain, they’re not long-term solutions. If you’re facing persistent drain issues, or need professional help with plumbing, HVAC, or gas line services, give Knight & Day Plumbing a call.

We proudly serve Pittsburgh homeowners and businesses with fast, reliable service that ensures your plumbing is always in top shape. Whether it’s drain clogs, water heater problems, or HVAC maintenance, our expert team is here to help. Don’t wait—contact us today for a free consultation!