Our non pressurised rainwater harvesting systems are suitable for a wide range of applications and buildings. For more information on our non pressurised systems, please don’t hesitate to contact us.
How does a non pressurised system work?
Rainwater is channelled from the roof into the storage tank passing an integrated filter to remove large debris, leaves etc. Water then enters the tank via an inlet calmer preventing disturbance to fine sediment on the base of the tank.
Excess rainwater flows out of an overflow which has a one-way valve and rodent protection; also skimming surface particles.
Inside the tank are sensors and a submersible pump which on demand take water from the cleanest part of the tank through a floating suction filter supplying filtered rainwater to the break tank.
This tank gravity supplies water to point of use. It is possible to have the break tank at any level in the building when combined with a booster unit sized for the specific building requirements.
During periods of low rainfall a WRAS compliant mains water top-up provides a continuous failsafe supply.
More than one break tank can be used in a system - our team can offer design assistance to ensure the most economic solution is applied.
Stormsaver provide two options of non pressurised systems; Singlex and Standard
The Singlex non pressurised control panel includes our unique automatically backwashing fine filtration unit, which has been tested to a million backwashes. This is always recommended where the client requires the highest quality of water or where a UV disinfection unit is to be included within the system. This ensures that when the rainwater passes through the UV unit it is filtered to 35 microns, thereby reducing the amount of particle build up on the UV tube so that the disinfection remains effective.
The Standard non pressurised control panel is much smaller and provides the simplest levels of control required to operate the system and is ideal for those watching the pennies, or who do not need such high levels of filtration.
More on our rainwater harvesting systems
All of the Stormsaver rainwater harvesting systems will make the most economic use of the local rainfall with predicted water consumption.
It is recommended that you speak to our expert staff to help you choose the correct type of system for your application and that you choose low water consuming products to complement the system, furthering a reduction in overall consumption.
All Stormsaver systems come with a 12 month warranty.
The building is said to embody the environmental principles at the heart of the agencies work. As a result, Horizon House won the 2010 BREEAM Office Award for being one of the most environmentally friendly offices in the UK.
The rainwater harvesting system reduces the mains water consumption by collecting and storing rainwater for use in toilet flushing. The new building uses a great deal less mains water than the offices it replaced due to the water saving measures they have put in place.
Read more »
How much does it Cost?
The exact costing of each Non-Pressurised Rainwater Harvesting System varies depending on your specific needs. However, it’s also worth noting that the Stormsaver rainwater harvesting system is an accredited part of the Enhanced Capital Allowance (ECA) scheme.
This means Stormsavers private clients can offset up to 100% of the taxable cost of the system against their tax bill at the end of the year. For more information or to o discuss the merits of our Non-Pressurised Rainwater Harvesting Systems please contact us.