How to Unblock a Kitchen Sink

How to Unblock a Kitchen Sink

When your washing up water takes ages to drain away, or unpleasant smells start to pervade your kitchen, it’s more likely than not that you’ve got a blocked sink. It’s a smelly, unpleasant problem to have in the heart of your home and, luckily, it’s normally easily dealt with. In this blog we’ll take a look at what causes a blocked sink, and offer some simple blocked sink tips.

Top Causes of a Blocked Kitchen Sink

Cooking involves the use of melted fat, and it’s all too tempting to dispose of cooking fat down the sink. Out of sight, out of mind. Except it returns to haunt you. Once the fat cools down it starts to congeal; this can cling to your sink pipes, and trap other debris, which gradually blocks the flow of water. So how to dispose of hot fat safely? The safest way is to collect it in a container, and dispose of it in your kitchen bin.

Any food solids such as rice, pasta, peas or sweetcorn have the capacity to block your drain over time. As a preventive measure, make sure all plates are scraped clean, so it’s only liquids that disappear down the plughole.

3 Blocked Sink Tips

The Drainflow team are used to dealing with questions regarding how to unblock a kitchen sink,  and we’ve developed 3 top tips that will normally sort the problem quickly and simply:

1. Plunge.

Sometimes the old fashioned remedies work best! The suction plunger can be bought from most hardware shops and it couldn’t be simpler to use. The idea is to suck the air out of the pipe sharply and then force it back in to dislodge the blockage. The plunger is placed over the plughole and then pushed down and removed. This can be repeated a few times until water starts flowing freely again.

2. Home-Made Water Blast.

At Drainflow we use high pressure drain jetting to remove blockages from commercial drains. You can create your own home-made version by filling a large plastic bottle with hot water. You then place it over the plughole and squeeze in order to create a mini-blast in your sink. If you’re dealing with a build up of foodstuffs in your sink pipe, this can be an effective way to clear it.

3. Dissolving the Grease.

If you think the problem is a build up of grease, there’s a tried and tested remedy that doesn’t involve heavy duty chemicals. You’ll need baking soda and vinegar. First you pour the baking soda down the plughole, then you follow up with a good dose of vinegar. This creates a pungent smell, and a good deal of rather satisfying fizzing. Once the fizz stops, follow through with hot water to flush the system through.

Professional Drain Experts in Bedford

If the home-made remedies don’t solve the problem, it’s time to call in the cavalry!! It may be that your sink’s blocked further into the drainage system, or that there’s a deep rooted drainage obstruction to deal with. The Drainflow team will respond to your enquiry promptly, we’ll diagnose the problem efficiently, and propose an effective solution. 9 times out of 10 we’re able to fix the problem straight away, so your kitchen can get back on track!


Sick of dealing with smells and a slow draining kitchen sink? Drainflow offers 3 tried and tested simple remedies. Call the drain experts in Bedford on 01525 718500