Manual

Page 15
LAKOS SST & PRO II Installation and Operations Manual
PROBLEM POSSIBLE CAUSES SOLUTIONS
Troubleshooting
Incorrectmediasand(i.e.toone
and too small)
Broken,damaged,ormissing
lateral.
Obstruction in the valve seat.
Rubber seating disc is worn or
damaged.
Diaphragmdamaged(Leaking
from bleed port hole located on the
piston chamber).
Airintanks.
Longbackwashlinecausing
vacuum.
Media Sand Appears
Downstream
BackwashValveLeaks
Water Hammer
1. Replace media with proper sized
media.
2. Repair or replace laterals of the
underdrain.
1. Remove the obstruction.
2. Replace seat disc.
3. Replace diaphragm.
1. Bleed off trapped air in system.
Air vent on system may be
required.
2. Installvacuumbreakeron
backwashline.