The WISY filter collector captures rainwater for use in the home, enabling households to save up to 50% of their mains water consumption. It is a highly efficient self-cleaning device which is fitted directly into rainwater downpipes. It captures over 90% of the rainwater from the down-pipe, filtering it and diverting it into a storage tank. The remaining water carries leaves and other debris from the roof straight down into the drains.
The simple but high precision WISY Filter Collector uses surface tension in conjunction with an ultra-fine filter mesh to remove all particles larger than 0.28 mm.
The standard filter is easily fitted by cutting out a section of down-pipe and replacing this with the filter. The system ensures that there is no contamination and little risk of blockages.
The high-grade stainless steel housing of the Filter Collector is non-rusting and frost resistant. Zinc and copper housings are also available.
The Filter Collector can be used in conjunction with most roofing systems. Ideally collecting roofs should be of tile or slate: asbestos or heavily soiled roofs should not be used for rainwater collection.
Since their invention in Germany in 1989, WISY filters have been successfully installed in over 100,000 homes. A rainwater harvesting system is increasingly becoming a standard feature in many new home developments not only on the Continent but also in the UK.
Available in several sizes, two of which are specially designed for compatibility with UK standard 110mm and 68mm plastic pipes
|Model number||for metal downpipe (not cast iron)
nominal size mm
|for plastic downpipe
ext. diam. mm
|FS 110 VA||110|
|FS 100 VA||100|
|FS 87 VA||87|
|FS 80 VA||80|
|FS 76 VA||76||82|
|FS 68 VA||68|
The standard filters have a high grade stainless steel housing.
Filters with zinc or copper housing are also available to order.
Please call to discuss your options if fitting the filter collector to cast iron pipework.