12volt and water pressure backup pumps from Plumbing World

2 Types of Emergency Sump Pump Systems

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Both of these fantastic pumps will help you prevent costly flood damage to your home if your electricity fails.

Water Powered - Back-Up Sump Pump

hose pump
Potential Pump Output*

Water
Pressure
Gallons Per Hour
5Ft above pump 10Ft above pump 15Ft above pump
30 PSI 350 GPH 235 GPH 125 GPH
40 PSI 425 GPH 335 GPH 250 GPH
50 PSI 490 GPH 410 GPH 330 GPH
60 PSI 530 GPH 475 GPH 400 GPH
* Actual pump output may be less OR more depending on situation variables

The HOME-GUARD® pump by Zoeller Pump Company can be installed as a standby to an electric sump pump (see typical installation). This pump uses water pressure from a garden hose as its power source. The amount of water it will pump varies greatly depending on the water pressure supplied to it.

#502-0005 = $156.98

- Or -

A water check valve, such as the 3/4" spring check valve model KZ-SPRING-075F, or a swing check model KZ-SWING-075F on a horizontal supply line is required on your drinking water piping right before the HOME GUARD unit. Some local codes require installing a 3/4" double check valve model BF-007QT-007 instead of a check valve. Because our customers are in all parts of the U.S. we also should mention that some very strict health codes require a 3/4" reduced pressure #BF-009QT-007 backflow device. Before installing the water back up pump we recommend that you check with your local governmental bodies as to permits and backflow laws in your areas. The "best" installation is to use a 3/4" reduced pressure #BF-009QT-007 backflow device before the HOMEGUARD.

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Battery - Emergency Sump Pump Systems

Click picture view of typical installation
A 12 volt battery back-up sump pump from Little Giant provides extra protection in the event the primary sump pump (not included) fails, an obstruction in the sump pit blocks flow, the main pump is prevented from operating, a power outage occurs due to storms or any other cause of excess water accumulation in the sump pit. The system also functions as an alarm system if the pump discharge line becomes blocked.
The back-up system is powered by a 12V battery (not included). A controller/charger monitors the battery condition and charges the battery when required. It also alerts the homeowner when the system has operated or when possible flooding conditions exist.
The system uses a high capacity, deep cycle battery (not included) that can provide in excess of 9 hours of continuous operation (using a 140 amp-hour battery) and pump up to 19,000 gallons of water (at 1 ft. head) continuously. Actual operation conditions usually result in intermittent use.
System Includes:
Pump
- 12V DC
- 1,000 GPH (gallons per hour) @ 10 ft. above pump
- Maximum flow: 1,600 GPH (gallons per hour)
- Maximum vertical pump height = 21 Feet
- 6" x 5¼" x 4¼"
Controller/Charger
- 10-amp charger
- Audible alarm:
When pump runs (stays on after pump stops & must be reset).
When battery is discharged
- Indicator lights (LED's)
Power 'On'
Battery charging
Battery fully charged
- 11" x 6 5/8" x 4¼"
Other Components
- Float switch
- Pump mounting bracket/clamps
- Ty-wraps
- Check valve
- Battery box (for 105 to 140 amp-hour battery)
- Fuse holder for 15 amp slow-blow fuse
- PVC discharge pipe connection tee

#LG-SPBS-12 12V Little Giant Battery Back-Up Pump =$372.90

Note: recommended battery is a 12V deep cycle marine battery (not included)

- Or -

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How reliable? "How reliable are both of these pumps?"
Excellent companies The battery unit is made by well-known, and long-time-in-business, Little Giant Pump Manufacturing. We have sold many of these units, and have not heard of any problems with them. As most people are aware, batteries generally only last 3-5 years. The better battery that you install, the more energy and reliability you will have, due to the quality of your battery. We recommend that you purchase and install the best battery that you can afford. The water-powered unit is made by Zoeller which is a well-respected company that specializes in pump products.

output? "What does the output consist of?"
quality pumps Output is the amount of water being removed from the sump-pump not including the amount of water being used to operate the pump. The pump uses an equal amount of water input for operation so the actual discharge amount is double the output rating.
For example:
Output rated at 125 gph

Input amount 125 gph
Discharge (total) 250 gph

Negatives? "Are there any negatives to installing either of these pumps?"
less volume Generally a backup sump pump doesn't produce as much volume. Also, any pump that sits for a number of years without being used could be stuck (rare but it happens). We suggest that before each rainy season that you turn on these pumps for a few minutes to make sure all is ok.

Code? "Anything else I should know before purchasing these?"
backflow devices The HOME GUARD comes with a water check valve but in a number of states where you are getting a permit, you must also install a legally approved 3/4" double check valve device when installing water to the HOME GUARD. Because potable water is directly connected to the HOME GUARD (which could have non potable water in it), many codes and municipalities require that an additional, special backflow device be installed. The HOME GUARD does come with a back flow device but many municipalities and codes do not recognize that one as "approved." We recommend that you check with your local building department and, if required, also purchase a 3/4" double check valve assembly from us. We always recommend a double check valve but if you don't need one then we hope that you will at least install a quality 3/4" swing or spring check valve.

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Water Pressure
	Gallons Per Hour
	5Ft above pump	10Ft above pump	15Ft above pump
30 PSI	350 GPH	235 GPH	125 GPH
40 PSI	425 GPH	335 GPH	250 GPH
50 PSI	490 GPH	410 GPH	330 GPH
60 PSI	530 GPH	475 GPH	400 GPH
* Actual pump output may be less OR more depending on situation variables

For example:
Output rated at	125 gph
Input amount	125 gph
Discharge (total)	250 gph