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How to Make a Leak Detector Liquid at Home

Detecting leaks in your home appliances is essential to prevent damage and maintain efficiency.

While professional leak detectors are available for purchase, you can also make an effective leak detector liquid at home using simple ingredients.

This article will guide you through the process of creating a homemade leak detector liquid, provide a list of its uses for various appliances, and explain how to apply it. For professional assistance, Appliance GrandMasters offers expert appliance repair in Greenville, SC.

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leak detector bubbling in tube 02

Ingredients for Homemade Leak Detector Liquid

To make your leak detector liquid, you will need the following ingredients:

  • Water: 1 cup
  • Dish Soap: 2 tablespoons
  • Glycerin (optional): 1 teaspoon

Step-by-Step Guide to Making the Leak Detector Liquid

Gather Your Ingredients

Ensure you have all the ingredients ready. Glycerin is optional but helps the mixture adhere better to surfaces.

Mix the Ingredients

  • In a small bowl, combine 1 cup of water with 2 tablespoons of dish soap. Stir the mixture slowly and steadily to prevent the formation of excessive bubbles.
  • If you choose to use glycerin, add 1 teaspoon to the mixture. This will help the solution stick to surfaces longer, making it easier to detect leaks.

Transfer to a Spray Bottle

Pour the mixture into a spray bottle using a funnel to avoid spills. A spray bottle allows for easy application of the leak detector liquid.

Shake Well Before Use

Before using the leak detector liquid, give the bottle a good shake to ensure the ingredients are well mixed.

leak detector bubbling in tube

How to Use the Leak Detector Liquid

Using your homemade leak detector liquid is straightforward:

  • Prepare the Area: Ensure the appliance is turned off and safely accessible.
  • Apply the Solution: Spray the leak detector liquid generously on the suspected area. Make sure to cover all joints, connections, and potential leak points.
  • Observe for Bubbles: Watch the sprayed area closely. If you see bubbles forming, it indicates there is a leak in that spot.
  • Mark the Leak: If you find a leak, mark the area with a piece of tape or a marker for easy identification during repairs.
  • Clean Up: Wipe away the solution with a damp cloth after you have finished inspecting for leaks.
leak detector homemade bottle

Uses for Homemade Leak Detector Liquid

Your homemade leak detector liquid can be used to find leaks in various appliances and systems around your home. Here’s a list of appliances as an example and how to use the solution:

  • Refrigerators and Freezers: Spray the solution on the refrigerant lines and connections. Observe closely for the appearance of bubbles, which will signal the presence of a leak.
  • Air conditioners: Apply the solution to the joints and connections of the refrigerant lines. If bubbles begin to form, it indicates a refrigerant leak.
  • Gas Stoves and Ovens: Spray the mixture on the gas connections and hoses. Carefully watch for the emergence of bubbles, which will indicate a gas leak.
  • Furnaces: Spray on gas line connections and other joints. Check carefully for the formation of bubbles as a sign of a leak.


Creating a homemade leak detector liquid is a simple and effective way to identify leaks in your home appliances. This procedure can be a quick fix in an emergency, helping you detect issues before they become major problems. However, for more reliable and accurate detection, professional leak detectors are available on the market.

Remember, while a homemade leak detector can help in a pinch, professional tools and services provide the most reliable results. Don’t hesitate to contact Appliance GrandMasters for any appliance repair needs in Greenville SC.

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Don’t stress. Appliance GrandMasters provides professional appliance installation and repair services to keep your appliances in top condition. Let our skilled technicians handle the work, ensuring your appliances run smoothly and efficiently. Contact us today for all your appliance repair needs in Greenville.

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About Appliance GrandMasters

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Formerly known as Mr. Rogers Appliances, we rebranded our appliance repair company to Appliance GrandMasters in June 2020. Since then, we have focused on developing our brand to be customer-oriented. 

Fixing appliances has become a passion for us. We enjoy challenges and we are always studying to become the very best.

We accomplish swift and top-notch service by employing efficient and friendly customer service procedures that guarantee accurate answers and solutions. 

Our approach involves the careful selection and comprehensive training for the necessary skills to fulfill our customers’ needs. Through these strategies, we strive to consistently provide exceptional service.