The "Hi-Flow" Sump Pump Backup or Replacement

"Once-in-a-century" storms now come every five years! And during a heavy storm, just when you need your sump pump the most, the power is most likely to go out. The sump pump stops pumping and your basement floods! Although homeowners are four times more likely to suffer a loss from flood than fire, most homeowner's insurance policies do not cover basement flooding. If your basement is furnished, the cleanup and replacement may cost you $50,000. If not, the damages to your furnace, water heater, washer and dryer, and stored stuff may set you back by over $10,000.

Get a backup sump pump now! (Most homeowners buy it after the flood.) if there is a power outage or if the main sump pump fails or is overwhelmed, the backup sump pump will turn on automatically and will keep your basement dry – an inexpensive basement flood insurance. Top 10 reasons why sump pumps fail.

If your sump pit gets lots of water, the mere thought of a primary pump failure can be enough to keep you up at night. When high pumping volume is critical and reliability is a must, look no further than our most powerful backup sump pump – the FloodWatch™ PH3000. Unrivaled performance and reliability at an unbeatable price - guaranteed! Competing systems cost almost twice as much!

Why Choose the FloodWatch™ Battery Backup Sump Pump?

FloodWatch 3000 Sump Pump

The FloodWatch™ PH3000 pump is for commercial and industrial applications like hotels, hospitals, and churches, as well as homes with occasional high sump water flows. It is also used for tighter sump pits to avoid float entanglement.

  1. Pumps a whopping 3,000 gallons per hour at a 10-foot lift.
  2. Highly efficient pump and motor for high capacity at a low power consumption.
  3. Widely adjustable vertical float switch to pump out the entire pit.
  4. Small pump footprint with a low-profile vertical float to fit into a busy sump pit.
  5. Advanced high water alarm with relay outputs for home security systems.
  6. Complete sump pump installation kit with all accessories (except battery) for an easy D-I-Y installation.
  7. No need to pay for an over-priced proprietary battery – you are free to find the best deal!
  8. Two-Year warranty.

Save hundreds $$$! You cannot find a backup sump pump of similar capacity below $1,000! (Do not be misled by deceitful claims of a "maximum pumping capacity" or by "pumping capacity at 0' lift." At a zero lift, a piece of plastic pipe has a higher flow rate. You need the flow rate at the typical 9 or 10 ft. lift.) And do not forget all the accessories you would have to buy separately.

Should my backup pump be more powerful than my primary pump? A good idea! Most of the time during the year, the smaller primary pump and motor will handle the routine flows with higher efficiency than a larger pump. But during the flooding season, the mighty backup or stand-by FloodWatch pump will handle the high flows and save your basement.

Order Today!

FloodWatch™ Sump Pumps are not sold in stores but delivered directly from the factory to your door. Orders received by 1 PM ET are normally shipped the same day and delivered by courier (UPS) within 2 to 5 workdays in the lower 48 states.

FloodWatch Sump Pumps
Item Price Shipping  
FloodWatch PH3000 - Backup Pump Kit $668 $30 Order Now button
Extra Battery Case with Cables (optional) $31 $9 Order Now button
FloodWatch SP3000 - Primary Pump Kit $196 $20 Order Now button
FloodWatch SP3000-S - Secondary Pump Kit $226 $29 Order Now button

Based on shipping by courier to the lower 48 states. For expedited shipping or shipping to other states and Canada, please inquire first by telephone or e-mail. Regarding shipping, returns and other terms, please review our Commercial Terms.

Shop with Confidence

  1. Price Guarantee If you find, within two months of purchase, another pump of the same or higher pumping capacity (3,000 GPH at 10 ft.) at a lower price, including similar auxiliaries, please provide the information and we will promptly refund the price difference.
  2. 30-Day Money-Back Satisfaction Guarantee Within 30 days of shipment, if not completely satisfied with the pump, you can return it in original packaging and in salable condition, shipping pre-paid, for a full refund of the product price, excluding shipping charges. You must telephone us first for shipping instructions. (Please purchase a shipping insurance in case it gets damaged during the return shipment.)
  3. Two-Year Manufacturer's Warranty The pump is warranted against defects in material and workmanship for a period of two years from the date of shipment. You must telephone us first for shipping instructions and ship it back at your cost. At our option, we will replace or recondition the pump and ship it back at our cost. This warranty becomes void by any misapplication, misuse, abuse, or improper installation of the product. This is the sole and exclusive remedy.

High Pumping Performance

The FloodWatch PH3000 is built to pump water, a lot of water. The highly efficient 1/2 horsepower motor outperforms other backup sump pumps in its class and pumps more water than most primary pumps. 

Pumping Rates
Pump FloodWatch 3000
at 5-ft. lift 3,300 gallons/hour 55 gallons/minute
at 10-ft. lift 3,000 gallons/hour 50 gallons/minute

The real estate inside a sump pit is valuable and the PH3000 was designed with this in mind. It has a 8" diameter and 12" height. Because it sits inside the pit, next to the primary pump, it employs a slim-line vertical float switch and a sleek, compact design to deliver “big pump” power in a highly efficient, compact unit.

How to calculate the water inflow into your sump pit? If you do not need such a high pumping capacity, consider the most reliable backup sump pumps - Hi & Dry Battery Backup Sump Pumps.

How Long Will the Battery Last?

FloodWatch 3000 uses a highly efficient, energy-saving motor. Because of the lower power demand, a single battery can power the pump for many hours or even days! If you want to double the pumping time of your backup system, you can purchase an extra battery case with a set of interconnecting cables for a dual-battery set-up.

Pumping Duration
 Intervals with one battery with two batteries
"continuous" (1-min. intervals) 12 hours 24 hours
at 5-minute intervals 24 hours/1 day 48 hours/2 days
at 15-minute intervals 48 hours/2 days
96 hours/4 days

Based on fully charged batteries disconnected from power supply and a 10-second pumping time in each cycle.

You Can Choose the Battery!

You Can Avoid Batteries!
Check out the most reliable backup sump pumps!
Hi & Dry Water-Powered Backup Pumps

No need to pay for an over-priced proprietary battery and shipping! You are free to find the best deal in local stores or online (usually $65 to $120). Nationwide retailers: Sears, Walmart, West Marine, Advance Auto Parts, Interstate Batteries, AutoZone, Car Quest, MK Battery, Pepboys, Optima Batteries.

You need a 12 Volt Marine Deep Cycle Battery which has thicker plates than starting (cranking) or automotive batteries to allow repeated discharging without warping. The common "maintenance-free" sealed lead acid battery will do the job but you may prefer the more expensive gel cell or absorbed glass mat battery (AGM). The finish charger (included) is suitable for all these battery types.

Battery size 27 up to 31 but not exceeding 13.5” long x 7” wide x 10” high to top of terminals. Stud post ¼” or 3/8”.

Typical battery specifications: 12 Volts DC, 95 Amp-Hour, 600 CCA.

The Complete Pump Kit Makes Installation Easy

Sump Pump Installation Kit

After buying a pump in a store, you have to shop for piping, check valve, alarm, and other accessories. But the "FloodWatch PH3000 Backup Kit" comes as a complete kit for do-it-yourself installation. All accessories for a typical installation, except the battery, are included:

  • High volume 3000 GPH pump, 1/2 HP. Single Phase, 115V/60HZ, 3450 RPM.
  • Power inverter mounted on top of battery case.
  • High-impact plastic battery case with 5-ft. battery cables and battery status lights.
  • One Amp-hour float/maintainer charger with status lights and both ring and alligator clip terminals.
  • Vertical float switch with piggyback plug.
  • High water 85 dB alarm with 9 V DC battery, relay outputs for security systems.
  • PVC check valve, 1-1/2" Size.
  • 12" long x 1-1/2" PVC pipe and adapter fitting.
  • 4 ft. long x 1-1/2" discharge hose with clamps.
  • 1-1/2" discharge T-connector to connect to the main discharge pipe.
  • PVC and polypropylene fittings for typical installation.
  • Illustrated installation and maintenance instructions.
How to install FllodWatch backup sump pump

Tools needed: Handsaw or pipe cutter, utility knife, tape measure, pliers, Phillips and slotted screwdrivers.

Supplies needed: PVC primer and cement, Teflon tape or pipe sealant, wall anchors.

A nearby GFCI (Ground Fault Circuit Interrupter) outlet is to plug in the unit.

Discharge – You can connect the discharge hose to your existing discharge pipe from the primary pump using the T-connector. But make sure there is a good-quality, fully functioning main check valve high above the primary pump but below the backup connection. This ensures that the sump water is not pumped back down into the pit through the primary pump. Alternatively, you can discharge the backup pump separately through a hole in the outer wall.

Built for Superior Performance and Reliability

FloodWatch 3000 is a heavy-duty, high-capacity submersible pump that rests at the bottom of your sump pit, next to your primary pump. The pump is designed to handle the frequent cycling and high water volumes of very active sump pits. It features cast aluminum construction with stainless steel fasteners and clamps. The motor is oil cooled, which allows for cooler running temperatures. PSC (Permanent Split Capacitor) motor with automatic thermal overload protection – no motor burnout! Made in North America.

The "Achilles heel" of most pumps are cheap accessories prone to failure. Floats cause over 80% of sump pump failures. The FloodWatch features the highest quality accessories – float, check valve, charger, and power inverter. Moreover, there are no unnecessary bells and whistles that would add complexity and reduce reliability.


Installed FloodWatch back-up sump pump

The batteries supply power to a 2,000 W continuous power inverter, which converts 12 V DC to 110 V AC power needed for the pump motor. The inverter has meters to monitor battery voltage and amps, overload temperature protection and thermally controlled cooling fans, an aluminum case with mounting slots and hardware.


The FloodWatch uses a vertical-style float switch to avoid entanglement. The vertical float takes much less space inside the pit than a tethered float and avoids the risk of entanglement with the primary pump float – a major factor in sump pump failures.

The high water level inside the sump pit should not reach the drainage tiles. Filling the tiles and gravel bed underneath the floor slab greatly extends each pumping cycle and soaks the concrete slab in water. The backup pump is often placed on a brick or cement block.

The vertical low-profile float can be clamped at any height on the discharge pipe. The float travel is also widely adjustable (3 to 8 inches). If the water level in the sump rises too high, the float reaches a switch at the top of the float rod and activates the backup pump. The heavy-duty "true on/off" float switch shuts off the power after emptying the pit – when the float fully drops to the normal down position – the bottom stopper (the Off switch). The placement of both switches is easily adjustable up or down.


One Amp-hour float/maintainer charger with status lights that keep you informed on the charging status and condition of the battery.. This automatic finish charger keeps the battery fully charged without over-charging and unlike a trickle charger, it also maintains a steady voltage. It prevents the water in the battery from boiling out due to over-charging.

The finish charger monitors the battery much more closely than other chargers and does not allow its charge to drop very far before it kicks in. Some other chargers appear more powerful because they are rated at, say, 10 AMPS but do not do a good job. Many of them allow the battery to drain to less than 50% before they turn on. But if your pump needs to start running during that "low charge" time, it won't run very long.

Compatible with any Marine deep cycle battery. Capable of charging one or two batteries as necessary.


Advanced high-water sensor and a loud (85 dB) audible alarm (9 V battery included) lets you know that the backup pump is has started running and warns you there may be something wrong with the power supply or your primary pump. Other pumps do not include an alarm. Once people figure out they need it, they have to buy it separately (value $30).

What about when you aren’t home to hear the alarm? By providing communication relay outputs, the unit is able to connect to your home security system or to a simple auto-dialer to notify you when the sensor is activated. Set it up to call your cell phone. Whether you’re on vacation or at the office, you can be aware of what is going on in your basement.

Approved by UL/CSA.

Alternative Setups of the FloodWatch 3000 Pump

Check out FloodWatch 3000 Setups as Primary, Secondary, or Backup Pump

FloodWatch as Your Main Sump Pump

PloodWatch3000 primary pump partsReplace your feeble, aging sump pump with the FloodWatch SP3000 sump pump! A higher pump capacity and better reliability but with low power consumption. Just plug it into an AC (GFCI) outlet. The compact design and vertical float will make it fit even into very small sump pits (min. diameter 12").

If you consider the pumping capacity, rugged design, reliability, and the widely adjustable float, you cannot beat the FloodWatch SP3000 price.

The "FloodWatch SP3000 Kit - Primary" includes all the needed components. The 1-ft. long PVC pipe(1-1/2") with adapters makes the connection to your existing discharge pipe easy. The vertical float, 1-1/2" check valve, and high water alarm (9V battery) are included.

Check out FloodWatch SP3000 Kit - Primary and abbreviated FloodWatch Primary Sump Pump Installation Instructions

FloodWatch as Your Secondary Sump Pump

Duo setup of FloodWatch sump pumpsIf your power supply is absolutely reliable, you do not need batteries. You just need a backup for the primary pump. The secondary or "stand-by" sump pump comes on automatically whenever the primary pump is in trouble. Its float switch is automatically activated when the water level rises too high in the sump pit. The secondary pump takes over if the primary pump fails. And, if the primary pump is getting overwhelmed, the secondary pump will turn on to help out - both pumps will operate in tandem to handle peak water flows.

The "FloodWatch SP3000-S Kit - Secondary" is the solution as your secondary or "stand-by" sump pump. Very easy installation! Just plug it into an AC (GFCI) outlet and connect its discharge hose to your main sump pump discharge pipe with a T-connector (included). There must be an operating check valve below the connection and above the primary pump.

The SP3000-S installation kit is complete and includes all the needed accessories. Similar to the items list for PH3000 Backup Sump Pump except for no longer needed parts like the battery case, charger, and inverter.

Check out FloodWatch SP3000 Kit-S Secondary and abbreviated FloodWatch Secondary Sump Pump Installation Instructions

The FloodWatch Duplex Setup

Two FloodWatch 3000 pumps in one pit! The ideal solution for maximum pumping capacity and reliability with a small footprint. It packs the awesome capacity of 6,000 gallons per hour at 10-ft. lift inside your sump pit. Thanks to vertical floats, the two pumps fit even into a tight sump basin.

You need one "Sump Pump SP3000 Kit - Primary" to run on AC and one "Backup Sump Pump PH3000 Kit - Backup" as its battery-operated backup.

If power outages are of no concern, there is no need for a battery and you just need one Primary Kit and one Secondary Kit, both plugged into an AC outlet (GFCI). (See the photo.)