Basement Watchdog BW4000 Primary/Back-Up Pump Review

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While this sump pump is expensive it also is filled with features that make it worth the price for the peace of mind alone. Battery backups can often cost $200 or more as well, which makes the price understandable. If you plan on buying a sump pump and a backup you’ll likely end up spending more anyway.

Battery Backup

The battery backup will activate anytime you use electrical power due to such things as; thunder-storms, major flood, brownout, or hurricanes.  The necessity of having a battery backup depends on your situation; the likelihood that you will experience a power failure and the damage it could cause. If you would be kept awake at night worrying what kind of damage your items stored in your basement would sustain should the pump fail, it might be something you want to consider. The backup for the BW4000 kicks on if the flow of water is too great for the primary pump alone.  The fact that the battery backup combo system doesn’t cost all that much more than the price of a standalone sump pump, it is often worth it for the long term peace of mind as well as protection of your most important investment.

Basement Watchdog BW4000

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Monitoring System

The Basement Watchdog BW4000 has a pretty cool LED monitoring system in place.  Should there be any sort of issue you will be alerted with an audible alarm and a light on the control panel will indicate the cause and the course of action you will need to take to remedy the issue. This is pretty handy and will not leave you guessing what the heck is wrong with your pump and make fixing an issue easier to pinpoint and get your pump up and running again. In addition, for added protection it is built with dual float switches that can be adjusted and remounted lower on the unit should you require it.

No assembly required

The Basement Watchdog BW4000 comes pre-assembled with excellent, simple installation instructions and everything you will need such as; check valve, plastic zip strips etc. (See the video below for a visual of the installation process.)  The Basement Watchdog combo will fit in sump pump basins up to 12” diameter and is 18” from bottom to top.

Battery Sold Seperate

The one inconvenience with this pump is the fact that the battery is sold separate and the one that is recommended (the 30HDC140S Basement Watchdog Back-Up Sump Pump Battery) seems, by most accounts, unreliable. It does not seem to last as long as advertised and you are required to buy the acid at a battery retailer and fill it yourself.  Some report that the battery lasts 1 to 3 years and then it fails, not good when the warranty is only for a year.  Others say it’s still going strong after 7 years but those are the minority. There is an alternative to this, however. (see below)

Yet another note: Battery acid is often sold in metric units, this battery requires 6 quarts which would require approximately 8 of the 750 ml packages of acid to fill the Basement Watchdog battery. (about $18 worth)

Battery Alternative

You can use any deep cycle marine battery, as long as it is not maintenance-free, to power the backup.  There are instructions included should you decide to install an alternative battery. If you are not using the Basement Watchdog battery you cannot use the battery fluid sensor since there is no hole on the non-Basement Watchdog battery for the sensor to enter. You will need to attach the sensor to the positive post of the battery to prevent the alarm from sounding continuously.  The sump pump system will not warn you if the fluid level is low with this configuration.  You will need to check your battery every couple of months to see if it requires water to prevent the battery from dying out.

Update: I recently came across this MK Deep Cycle Gel Cell 12 Volt Battery for Backup Sump Pumps battery.  It has good reviews and is said to last 7 to 8 years on average.

Specifications

  • Battery backup protection built in
  • LED monitoring system for quick fix to any issues
  • Audible Alarm
  • Adjustable dual float switches encased in a protective cage
  • Pre-assembled
  • Excellent installation instructions
  • Primary system pumping capacity: 4400 GPH @ 0′ or 3200 GPH @ 10′
  • Backup system pumping capacity: 2500 GPH @ 0′ or 1730 GPH @ 10′

Customer Opinions

The opinions on the Basement Watchdog BW4000 model are overwhelmingly positive.  Some of the statements to date:

“I have to say that I’m a true believer. Nothing lasts forever, so I’m thrilled that this combo solution will not only warn me about a redundancy failure, but cover the issue until its resolved. Money well spent.”

“It’s expensive but not nearly as bad as having a basement flood while away on vacation. If you are replacing a sump pump or if you are adding a secondary pump this is the one to get. Everything is assembled already and you just have to connect it to the outlet pipe with the included rubber coupler.”

“First of all, we didn’t lose power during Sandy. However, the amount of rain was enough to cause the sump to start every 3 minutes. And this lasted for hours. No issues were experienced.”

“As with any thing these days YOU GET WHAT YOU PAY FOR! Sure, there’s cheap units on the market that can do the job, but when it comes to the security of your home, don’t skimp!  We’re happy with the purchase.”

Warranty

The Basement Watchdog BW4000 comes with a 2 year warranty.

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