The Zistern Filter (or ZF Filter) is a rainwaterfilter for installation in rainwater tanks. It is a two-step cleaning system. The first coarse filter mesh protects the second, finer mesh by removing larger leaves and particles.
 
Self cleaning, low maintenance, depending onthe contamination. Cleaning frequency depends upon the solids loading in the incoming rainwater. We recommend twice yearly inspections.
For roof areas up to 200 m². This can be installed inside the turret of an underground tank or outside of an above ground tank.
 
All connections DN 100. (110mm OD) drainpipe sockets. Height difference of 117mm between rainwater inlet and waste water outlet.
 
Stainless steel mesh size of the filter cartridge 0.7 x 1.7mm.
 
The cleaned water can be used in washing machines, toilet flushing and garden watering, in homes, in commerce, in public buildings and in industry.
How it works:
1. Rainwater flows onto the first filtration step.
2. Coarse and larger dirt particles are ledaway to the sewer/ waste.
3. The pre-filtered rainwater, having passed the primary filter, reaches the second and finer filter. From here finer dirt passes to waste, clean water to the tank.
4. The cleaned rainwater flows into therainwater tank.
5. Due to the steep inclination of the fine filter and its smooth surface structure the dirt is quickly cleaned away into the sewer.
 
£314.38+VAT = £377.25