The recent large volume downpours of rain causing flooding will only increase. So how do we counter this flash flooding?
There are a range of approaches that could really help to address these issues, with multiple benefits like mandatory rainwater catchment systems on all new builds.
These rainwater catchment systems could actually make up 50% of a household’s water requirements. These tanks usually hold a capacity of around 3000-litres, or above, and are effective at drawing a large volume of rainwater from roofs making it accessible for household use (they are underground).
On larger light industrial sites, other soft engineering water catchment methods could be employed like ponds, wetlands, sustainable draining systems (suds) and swales (shallow, vegetated channels or depressions), depending on topography. These methods would both reduce run off but also create diverse habitats at the same time whilst improving the quality of the working environment.
Whilst suds and some other soft engineering projects have been implemented, there are so many other opportunities to expand this approach with multiple benefits.
There are also implosion systems that could be used. These systems work to engender vitality and life-giving energy into the water and can improve crop productivity.
Yes, this needs government action to force water companies to pay for these rainwater catchment systems (including perhaps a percentage of government funding). I suggest these schemes should be on all new builds, whether houses, commercial enterprises or new extensions, so the cost is not incurred by the developer / house or commercial property purchaser, or for agreed new house extensions.
Think of the boost to the economy of new jobs including jobs in manufacturing rainwater catchment systems and installers and the other multiplicity of benefits that could be accrued for the consumer. Also, businesses will benefit from lower water bills in the long term. An improved environment is also achieved safeguarding soil, river life and seas. This is in all our interests, surely?
Turkey and Tama Nadu (an Indian state) have implemented mandatory regulations for rainwater catchment systems. Germany is currently the largest market for rainwater catchment systems in Europe and neighbours, like France, are catching up slowly.
The trend is clearly rising as many EU countries are increasingly impacted by rainwater issues.
References
Rainwater Harvesting
Swales and contours
Implosion systems