Safety and Specifications
Important Safety Instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation, operation, and maintenance of the product.
This is the safety alert symbol. When you see this
symbol on your pump or in this manual, look for one
of the following signal words and be alert to the
potential for personal injury!
indicates a hazard which, if not avoided,
will result in death or serious injury.
indicates a hazard which, if not avoided,
could result in death or serious injury.
indicates a hazard which, if not avoided,
could result in minor or moderate injury.
NOTICE addresses practices not related to
personal injury.
Carefully read and follow all safety instructions in this
manual and on pump.
Keep safety labels in good condition. Replace missing
or damaged safety labels.
California Proposition 65 Warning
This product contains chemicals known to
the State of California to cause cancer or birth defects
or other reproductive harm.
NOTICE This unit is not designed as a waterfall or fountain
pump, or for applications involving salt water or brine!
Use with waterfalls, fountains, salt water or brine will void
warranty.
Do not use where water recirculates.
Not designed for use in swimming pools.
NOTICE Read this Owner's Manual for installation,
operation, and safety information.
1. Know the pump application, limitations, and potential
hazards.
2. Do not use in water with fish present. If any oil leaks
out of the motor it can kill fish.
Performance
GPM (LPM) at total feet (m) of lift
5
Series
HP
(1.5m)
Capacity Gallons(L)/Minute
MS33
1/3
53
MS50
1/2
66
Electrical & Switch Specifications
Motor Full Load
Series
HP
MS33V
1/3
MS50V
1/2
MS33T
1/3
MS50T
1/2
MS33D
1/3
MS50D
1/2
MS33M
1/3
MS50M
1/2
10
15
20
(6.1m)
(3m)
(4.6m)
45
36
24
56
44
28
Individual Branch
Amps
Circuit Req. (Amps)
3.9
4.1
3.9
4.1
15A 115 VAC
3.9
4.1
3.9
4.1
3. Disconnect power before servicing.
4. Release all pressure within system before servicing
any component.
5. Drain all water from system before servicing.
6. Secure discharge line before starting pump. An
unsecured discharge line will whip, possibly causing
personal injury and/or property damage.
7. Check hoses for weak or worn condition before each
use, making certain that all connections are secure.
8. Periodically inspect sump, pump and system
components. Keep free of debris and foreign objects.
Perform routine maintenance as required.
9. Provide means of pressure relief for pumps whose
discharge line can be shut-off or obstructed.
10. Personal Safety:
a. Wear safety glasses at all times when working with
pumps.
b. Keep work area clean, uncluttered and properly
lighted – replace all unused tools and equipment.
c. Keep visitors at a safe distance from work area.
d. Make workshop child-proof – with padlocks,
master switches, and by removing starter keys.
11. When wiring an electrically driven pump, follow all
electrical and safety codes that apply.
12. This equipment is only for use on 115 volt
(single phase) and is equipped with an approved
3-conductor cord and 3-prong, grounding-type plug.
kill. This pump has not been investigated for use in
swimming pool areas. Pump is supplied with a grounding
conductor and grounding-type attachment plug. Be sure it
is connected only to a properly grounded grounding-type
receptacle.
Specifications
Power supply required...................................115V, 60 HZ.
Liquid Temp. Range..........................32°F to 70°F(0°-21°C)
Individual Branch Circuit Required (min.).............15 Amps
Discharge........................................................1-1/2" FNPT
NOTICE Do not reduce size of discharge pipe or hose
below 1-1/4" diameter. If discharge is too small, pump will
overheat and fail prematurely.
This pump is designed for use in a residential sump only.
Only pump water with this pump.
No flow
at height
shown
below
25 (7.6)
Automatic Switch Type
Vertical Switch
Tethered Switch
Diaphragm Switch
Non-Automatic Option. No switch included.
Risk of electric shock. Can shock, burn or
Switch Setting in inches
Water Level For:
On
7-1/2"
14"
9-1/2"
2
Off
3"
5"
5"