Owner's manual

LAKOS Waterworks PWC Series Separators
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5. To determine the necessary frequency, purge often at first and calculate the proper rate with
regard to the actual volume of separated solids. Purge duration should be long enough to
evacuate the purge chamber of solids. Frequency of purge should prevent the time it takes to fill
the collection chamber more than approximately ⅓ its collection chamber capacity. Purging
should prevent separated solids from accumulating in collection chamber for longer periods of
time. Consult your LAKOS representative for specific recommendations regarding your
application.
6. When operating in sub-freezing temperatures, be sure to protect the separator’s collection
chamber and all purge line piping from freezing.
Maintenance Recommendations
Periodic inspection of selected separator components is recommended to assure proper long-term
operating performance.
1. Purge valve: Inspect the purge valve for proper operation. Use manual override button to initiate
a purge cycle; observe purge flow and note that it should run clear before valve begins to close; if
not, re-set programming to purge for a longer duration. If valve leaks, replace necessary parts.
2. Hand-hole clean-out: At least annually (or when separator is shut-down for other system
servicing routines), open the hand-hole clean-out and inspect for solids accumulation or
unwanted build-up in the separator’s collection chamber. If necessary, remove excessive debris.
Inspect gasket and replace if necessary. Check purge programming to be sure it is adequate to
remove separated solids; if not, re-set to extend duration and/or frequency of valve actuation.
3. Pressure Gauges: The gauges installed on the inlet & outlet of the LAKOS Separator help monitor
proper flow through the separator. They are NOT indicative of solids accumulation and should
NOT be used to determine when to purge the separator. Gauges should read a pressure
differential loss of 3-15 psi from inlet to outlet and that differential should remain steady with
the flow of water through the separator. Fluctuations in gauge readings indicate:
a. A change in pump flow – Inspect pump for proper operation and/or downstream
piping/equipment for conditions that could create backpressure on the system flow.
b. An obstruction in the separator – Internal slots may be clogged by unusual solids. Use
inspection plug and a video scope to examine & remove blockages from internal slotting.
Consult LAKOS if necessary.
c. Gauge blockage – Close petcock valve, remove gauge and check for debris clogging the
gauge port, which could affect an accurate gauge reading.