Households in areas hit by heavy downpours are being urged to pour vinegar down their drains on Saturday to help prevent blockages. The advice follows weather warnings for parts of the UK as Storm Austen brings heavy rain, with Storm Boelo expected to follow.
Why drains block during heavy rain
After several largely dry weeks, heavy downpours can cause outdoor drains to clog quickly with leaves, twigs and other dirt. Kitchen drains can also contribute, as fat, grease, rice and bits of food grime can build up and block outdoor pipes.
When heavy rain meets blocked drains, the drainpipes can no longer cope with the amount of rainwater pouring through them. This is why households are being advised to use vinegar to keep drains clear after the weekend rain.
Cheap and chemical-free solution
Plumbing website Wolseley explains that outside drains handle everything from domestic waste to leaves and outdoor debris, making them prone to blockages. The site recommends controlling what goes down the drains, such as avoiding pouring cooking grease or coffee grounds directly into them.
Wolseley also suggests adding grates and filters to outside drains to stop garden debris, particularly leaves, from causing blockages. Small filters can be added to indoor plugholes to catch food waste and hair.
For drains that block regularly despite precautions, Wolseley advises using baking soda, vinegar, or small amounts of chemical drain cleaner to keep them clear for longer.
How to use vinegar and baking soda
Plumbing website Plumbcare explains the method: mix two parts baking soda and one part salt and pour it down the drain. Then warm four parts vinegar and pour it on top. The mixture will bubble and fizz. Leave it to work for 15 minutes and then flush through with hot water.
