Systems Guide - Design
- Head or Valve Assembly
Shop related parts: Valves
There are several components that I recommend be installed into all
drip irrigation systems:
1) a backflow prevention device such as a pressure vacuum breaker,
an anti-siphon, or atmospheric vacuum breaker is recommended for all
watering systems that are connected to a drinking water supply. This
eliminates the possibility of irrigation water backing-up into the drinking
or potable water system
2) a fertilizer dispenser like the “ADD-IT”® allows
for the application of liquid or any dry, totally water soluble, fertilizer,
3) a filter to screen out small particles matter from the water and
protects the small openings or orifices of emitters, micro-sprays, etc.
from clogging. It contains a fine mesh screen screen or cartridge that
can be rinsed and reused;
4) and a pressure regulator which reduces the higher pressures found
in home plumbing systems, usually 45-100 PSI, down to 10 to 25 PSI,
depending on the drip irrigation system being installed. The lower pressure
greatly reduces the possibility of leaks and blowouts.