©2011 Jain Irrigation, Inc.
www.jainsusa.com
11
Dan
Fogger/Mister
b) Scheduled Maintenance- Weekly, Monthly
i) Filtration
(1) Visually inspect filter element (screen, disks, sand, etc.)
(a) Verify filter element is clean, manually clean if needed
(b) Check for wear on filter element
ii) Flushing
(1) PVC manifolds, sub mains, and mainlines
(a) Consult designer for flush time
(2) Laterals (PVC or Polyethylene)
(a) Rule of thumb is a velocity at 1fps.
(i) 600’ lateral takes a minimum of 10 minutes to complete
flushing
(b) Consult designer for maximum lines to open at once to ensure
adequate flush velocity
iii) Weed Control
(1) Routine mowing or spray
(a) Weeds block rotating sprinklers and disturbs wetting pattern
(b) Excessive vegetation provides a home for insects, insects can cause
external sprinkler plugging due to nesting in the nozzles.
2) Preventative Maintenance
a) Best Management Practice is performing scheduled and routine maintenance as described above
b) Chemigation
i) Water Treatment
(1) High mineral content- acids or phosphates can be used to prevent scaling,
please consult with your PCA or CCA for recommendation
(2) Organic matter- Biocides (Chlorine) can be used to prevent growth, please
consult with your PCA or CCA for recommendation
c) Fertigation
i) Chemical compatibility- Jar test to ensure no precipitates.
(1) Harsh chemicals that increases plugging and premature wear — Lime,
gypsum, acids, surfactants, etc.
