Commercial Filter Systems
5-005
AUTOMATIC BACKWASH
CONTROL SYSTEMS
STARK HORIZONTAL HIGH RATE SAND FILTERS — Filament wound, composite filter tanks
with end manway and top connections for ease of assembly and service. 60" diameter tanks are
designed for a maximum operating pressure of 75 psi with a maximum burst safety factor of 4 to
1. Gel coat fiberglass tank lining is filament wound with continuous fiberglass strand. Horizontal
design maximizes filter area square footage and provides a deeper filter bed depth than other
horizontal high rate sand filters. Multi-spray head diverters and full width laterals result in long
filtration cycles and maximize backwashing effectiveness. Vessels finished with Paracote UV
resistant coating, for added protection. Available in single tank and multiple tank configurations.
Completely non-corrosive systems withstand the effects of pool water chemistry, electrolysis,
and corrosion. 15 Year Limited Warranty.
CHEMTROL 4000 FILTER CONTROLLER —
Integrated filter controller for continuous
monitoring and/or control of flow rate, influent
and effluent pressures, temperature, main
circulation pump and filter backwash cycles.
Includes: electronic flow meter, electronic
temperature sensor, NEMA 4X (rain and splash
proof) lockable fiberglass cabinet, memory
storage battery, and on-board storage for up to
6 months of data. Additional options available,
inquire. 5 Year Warranty.
5-005
5S STYLE SYSTEMS include: Front mounted manhole with viewport, influent/effluent pressure
gauges, pre-glued Schedule 80 PVC face piping with flanged connections, water activated
backwash valves, semi-automatic multiport backwash valve, manual air relief ball valves, and
media dump port. UL Listed Automatic Backwash Controller (24 VAC) is available as an option,
in place of semi-automatic backwash valve, and includes flow meter/saddle and temperature
probe. Optional Stark Controller Interface allows use of integrated backwash controllers from other
manufacturers in place of semi-automatic multiport valve. Para-Pump Booster System, to maintain
water pressure to backwash valve also available as an option. NSF Listed.
5S STYLE SYSTEMS – 60" DIAMETER
Model
5S1-30
5S1-35
5S1-40
5S1-45
5S1-50
Tank Size
DxL
Tank
Connection
Size
Filter Area
Sq. Ft.
Flow Rate
@ 15 GPM
per sq. ft.
60" x 78"
6"
30.0
450
60" x 90"
6"
35.0
525
60" x 102"
6"
40.0
600
60" x 114"
8"
45.0
675
60" x 126"
8"
50.0
750
Automatic Backwash Controller
Para-Pump Booster System
6 HR. Turnover
@ 15 GPM
per sq. ft.
162,000
189,000
216,000
243,000
270,000
Semi
Automatic
Automatic
15-800
15-900
15-820
15-920
15-840
15-940
15-860
15-960
15-880
15-980
•
15-030
15-032
STARK ACCESSORIES
15-030
AUTOMATIC BACKWASH
CONTROLLER
TOLL FREE (800) 223-5450
15-032
PARA-PUMP BOOSTER
SYSTEM
15-720
STARK CS400 BACKWASH CONTROL —
Compatible with Stark or Pentair THS filtration
systems that utilize diaphragm style backwash
valves. Integrated multiport valve can actuate
up to 6 filters. Backwash can be initiated in
three ways: true semi-automatic backwash
at the single touch of a button, via external
signal from a master filter room controller,
or by a signal from a differential pressure
switch. Includes: Fireman's heater time delay,
programmable backwash times, alarm, and
data logging.
15-720
SEMI-AUTOMATIC
MULTIPORT VALVE
37