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How to Use Submersible Pumps to Prevent Flooding in Your Home

Submersible pumps are excellent tools for draining various bodies of water, such as pools and hot tubs, but they are probably best known for getting rid of flood water. However, you might not have realised that sump pumps can also be used as a preventative measure to defend your home against flooding in the first place?


If you live in a flood prone area, you’ll be all too well aware of the havoc that floods can wreak, and also how hard it is to obtain home insurance - especially if you’ve previously had to claim for flood damage. While a submersible pump can’t stop floods from happening, it can ward off rising water in below ground areas, such as your basement or cellar. In this blog, we’ll explore how to effectively use a sump pump to minimise flood damage to your property.

How is it Done?

When water levels rise - be it heavy rainfall, a burst pipe or a leak - the water will always tend to find the lowest ingress point, which often means that basements, cellars and below ground living areas will feel the brunt of the flood damage. If you don’t go down there often, you may not even realise straight away that there’s an issue, by which point it’ll be too late to recuse your belongings and you’ll likely be faced with a damp problem.


One common solution is to do some DIY and make the space completely watertight, but this can be quite expensive. As such, a submersible pump is a much cheaper way of proactively safeguarding against rising water levels.


Firstly, you’ll need to create a sump pit to collect any flood water at a lower point to the rest of the cellar. Remember that submersible pumps only work when they’re submerged in water, so simply placing one on the floor would require the whole room to flood to a certain height for the system to start pumping. Because of this, the sump pit should be at least 22 inches deep, with a diameter of 18-24 inches, naturally make sure it will accommodate your choice of pump.


Place the pump in the pit, connect to a power source and switch on. You can then safely leave it to work. If water enters the area it will, as mentioned earlier, find the lowest point: the sump pit. Once it rises around the pump to a sufficient level, it will automatically start pumping. This means that you’ll be able to ward off the problem before it really begins without really having to go to too much trouble.

Water Pump Installations & Maintenance in Bury

Are you looking to have a submersible pump installed or maintained to help with flooding prevention? H2O Flowtech can help. Our experienced team can perform efficient water pump installations and servicing on many different types of system, tailoring our services to meet your needs. Please get in touch with us for more information.

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