Description

When you have a large project & you’re pulling water from a stream, pond or lake, it’s important to protect the irrigation system from debris. If you choose not to, then you can expect to have all sorts of issues with solenoid valves jamming open, sprinklers weeping and even pipes getting clogged up over time. You can avoid these major problems by installing a filter. Most solenoid valves and electric rotors need protection to about 300 microns (0.3mm) so this is far smaller than your suction inlet screen. Dripline systems generally require 200 micron filtration.
There are 2 main types of filter elements; screens and discs. A screen is just that; it’s normally stainless. The problem is when you are removing algae & other organic matter, this gets stuck within the screen and is difficult to remove. Disc filters are better in this instance because the debris get caught between thin 3-dimensional plastic discs that resemble the gills on a fish. When it’s time to flush the debris out, the discs get separated and the algae & organic matter are released and flushed to waste.
Rain Bird offers disc filtration with automatic back-flushing for large systems. These come ready to bolt into your irrigation system mainline downstream of your irrigation pump. The back-flush system requires single phase power.
Choosing the correct filter bank is determined by the overall flow rate of your irrigation system, keeping in mind the amount of extra water that the back-flushing will require. If you are unsure then please contact us… that’s what we’re here for!
Choose the filter for your project based on the maximum flow rate of your irrigation system. Please note the maximum flow rates listed below will be reduced if your water is dirtier.