Rainwater harvesting works

You may have seen this image before, especially if you're a follower of GRAF UK content online. However, we offer no apology for sharing it again because this is so important and has to be seen by as many people as possible!...

You might know that a lot of our rainwater harvesting systems get installed, serviced and maintained, by a Company we work very closely with called The Rainwater Guy Ltd. They recently returned to a system that they'd installed back in 2012, because the homeowner needed a replacement part for the filter suction hose on their submersible pump.

When this system was originally installed in 2012, the owner of the house asked The Rainwater Guys to fit a water meter on both the rainwater pipe and the mains water top-up pipe that both connected to the underground tank, so that they would be able to monitor how much rainwater they used instead of mains water.

For info, this was only a small domestic rainwater harvesting system, providing rainwater to supply the downstairs toilet, washing machine and outside tap.

So, on the recent visit to replace this part on the submersible pump - which, it's worth noting, is the only thing this system has needed in the 9 years it's been used because it's been working perfectly all that time - they took advantage of the opportunity to check on the water meters...

As this photo shows, what they found was that this system has used rainwater for almost 80% of their water usage in the house, instead of using mains water. What a saving!

Proof that Rainwater Harvesting systems can save a lot of mains water!

We typically tell customers that they can save 50% of their mains water usage by using rainwater instead. This system therefore proves that in some cases, it's actually closer to an 80% saving by using rainwater instead.

Yet more proof that rainwater harvesting systems work and are a good idea.

If you're interested in helping to save mains water, perhaps rainwater harvesting is something for you to consider?