Drain Cleaning Powder unblocks pipes and sinks with a chemical formula containing sodium hydroxide, aluminium powder, sodium hypochlorite, and sodium dodecyl benzene sulfonate for use on slow-running drains and blockages
Drain Cleaning Powder: Chemical formula with sodium hydroxide and aluminium powder for blocked sinks

This drain cleaning powder provides a chemical solution for dealing with slow-running or completely blocked domestic sinks, basins, and waste pipes. It is formulated with active ingredients designed to react with and break down common organic blockages, including accumulated grease, hair, soap residue, and food particles. The product is supplied as a fine powder in eight individual, pre-measured 30g sachets, making it convenient for targeted treatment without the need for measuring. With a total weight of 240g, it offers multiple applications for regular drain maintenance or tackling several separate blockages.
Features and Construction
The effectiveness of this drain cleaner is based on its specific chemical composition. Each ingredient serves a defined purpose in the process of clearing obstructions within pipes.
Material and Build
The primary active ingredient is sodium hydroxide, commonly known as caustic soda. It works by reacting with grease and organic matter to break them down. Aluminium powder is included to react with the sodium hydroxide and water, generating heat and hydrogen gas which can help to dislodge debris. Sodium hypochlorite adds a cleaning and disinfecting action, while sodium dodecyl benzene sulfonate acts as a surfactant, helping the solution to penetrate and wet grease deposits more effectively.
Size and Practical Fit
The product is packaged for practicality and user safety. The total pack contains 240g of cleaning powder, subdivided into eight individual foil or plastic sachets, each containing exactly 30g. This pre-measured format ensures a consistent dose per application and minimises direct handling of the concentrated chemical powder. Each sachet is designed for a single use on one blocked or slow-draining outlet.
Uses and Placement
This chemical drain cleaner is intended for specific household maintenance scenarios. It is suitable for various waste pipe systems commonly found in kitchens and bathrooms.
Event or Professional Use
While primarily for domestic use, the pre-measured sachets offer a clean and controlled option for occasional use in settings like small catering areas, office kitchenettes, or rental property maintenance. The standardised 30g dose reduces the risk of incorrect application. It is intended for dealing with established blockages rather than as a daily cleaning product.
Everyday Home Use
In a typical home, this powder can be used on kitchen sinks prone to grease and food waste blockages, or on bathroom sinks and shower drains where hair and soap scum accumulate. It is applied directly into the blocked drain, followed by water as per the instructions, where the chemical reaction takes place to clear the obstruction. It is not recommended for use in toilets or on severely blocked drains that may require mechanical clearance.
Benefits and Buying Value
Choosing this drain cleaner offers particular advantages based on its formulation and packaging. Its value lies in its targeted action and user-friendly design.
Reuse and Low Maintenance
The eight-sachet pack provides multiple treatments, allowing you to address several blockages over time or maintain different drains. The sealed sachets help keep the remaining powder dry and effective for future use. As a chemical cleaner, it requires no special tools or physical effort, making it a low-maintenance option for periodic drain care.
Why Choose This Product
This drain cleaning powder offers a specific combination of chemicals—sodium hydroxide, aluminium powder, sodium hypochlorite, and a surfactant—designed to work together on organic blockages. The key practical differentiator is the pre-measured 30g sachet format, which promotes safer, easier handling compared to bulk powders and ensures a consistent dose. It provides a chemical alternative to manual plunging or snaking for appropriate types of blockages.