Q. Do the listed pumping rates include the municipal water that powers it?
No. Only the water that is removed from the sump pit itself is counted. The added municipal water is not counted, is never introduced to the sump pit, and is only used to power the pump. This water is ejected outdoors
water after going through Basepump.
Q. How much water does Basepump use and what about the environment?
Basepump uses 1 Gallon of municipal water to remove 2 Gallons of sump water, at
90 lbs. PSI. Water usage per gallons removed will decrease proportionately as the pressure increases. At
60 PSI it will use 1 Gallon to remove
about 1½ Gallons from the sump. Since this is an emergency backup sump pump, this water usage is somewhat irrelevant. The average cost of that water, (about 2.5 cents each minute it runs in most locales), compared to a basement ruined by flooding, is an easy tradeoff. This cost is actually very close to the
average cost of the electricity used to run your primary pump. The water ONLY runs when Basepump is activated by a high water situation. As an extreme example, if Basepump were to run for 30 seconds once every 5 minutes for an entire 24 hour period, (288 cycles!) the average cost of operation for that day would be approximately $3.60! Compare that to the damage prevented or the replacement cost of batteries for a battery powered unit. The 3 Models of Basepump use differing amounts of water at various pressures. See the chart on the Basepump page to review those usage amounts. Keep in mind that Basepump doesn't actually destroy or change the water it USES into something else. It is simply putting it back into the storm drain system to be recycled once again. It is not being contaminated except by ground water just like the water that falls in the form of rain and goes back into the water supply system. Don't misunderstand, we know it has to be put through the ecosystem again, but not through the sewage treatment system. Saving the basement certainly eliminates tons of waste materials that would have gone into landfills.
Q. How do I know if I have enough water pressure and flow for Basepump?
A standard static pressure gauge will tell you if you have the necessary 40 lbs. PSI minimum required to run Basepump. This is less important than than the flow rate, or volume, of the water. The best way to test the flow of water, is to use an outside hose spigot, a 5 gallon bucket, and a stopwatch. With the water fully on, carefully calculate the amount of time it takes to fill the bucket to the 5 gallon level, usually about where the handle is attached. If it fills in 40 seconds or less, you have adequate flow to run Model RB750; 30 seconds or less for Model HB1000; and 20 seconds or less for CB1500. This test is done at your hose spigot because it is very likely that the pipe line to that spigot is smaller than 3/4" and a standard spigot will normally have some restriction in it. These limits are factored into this test. This helps determine which Basepump Model will most likely operate when connected right after the meter.
Q. What if I have a "Frost-Free"
This type of spigot restricts water flow more than a standard spigot. In order to get a reasonably accurate estimate from this spigot, you will have to fill the bucket, calculate the time, and then reduce that time by 30%. This would give you a reasonable estimate of the time it would have taken with a standard spigot.
as it is
Q. Is there a maximum pressure and what happens if that is exceeded?
The components of Basepump are rated well above 100 PSI. However, when
95 Lbs. PSI is exceeded, the inlet valve may leak
"spit" slightly, but only momentarily during the closing process. While the valve is closing, there is a momentary surge in the pressure inside the valve and this may cause the valve to "burp" slightly to relieve the excess. A few drops of water may escape at that moment and spray out a little, but that is all. To avoid this condition, if your incoming water pressure exceeds 90 PSI, tie in the water connection after the Pressure Regulator Valve.
Q. Choosing among Basepump Models RB750, HB1000, and CB1500.
Model RB750 is for use in private homes typically having less than 2,500 square feet of basement area and a minimum 1/2" water service. The Model HB1000 requires a minimum 3/4" water service. The Model CB1500 requires a minimum 3/4" or 1" water service and a Licensed Professional Plumber should install it. Carefully consider the pressure and flow requirements indicated above when ordering.
Q. Can I use 1/2" pipe to install a Basepump model?
only Model RB750 may be installed using
pipe and tied into an existing 1/2" OR 3/4" water line from the main water service. Model HB1000 must be installed using 3/4" pipe from the main service line, which must also be 3/4" minimum. Model CB1500 may be installed using 3/4" OR 1" pipe and tied into an existing water service of the same or larger size. All shutoff valves in any installation must be full-flow, ball or gate type valves, and full-flow copper or equivalent piping such as PVC, CPVC, PEX, etc. are recommended. Check with your local Plumbing Department if you are unsure about any of this. Do not use or connect to galvanized iron pipe. Do not use piping that is not approved in your area. We sell easy-to-use, solder-free installation kits (without the pipe) for both copper pipe and PEX plastic pipe systems. Click here for more information on our kits.
Q. Is a back-flow preventive device required?
Most local plumbing codes require back-flow preventive devices on many water fixture installations to protect the potable water supply in the event of a flow-reversal in the system. Check with your local plumbing department if you have any questions about back-flow. Typically a Dual Check Valve or a SVB (Spill-Resistant Vacuum Breaker) are industry recognized Back-Flow devices that can be installed in the water supply pipe before Basepump. Basepump poses no threat to the potable water supply,
when installed independently to the exterior
and open to the atmosphere on the discharge side.
Q. Can the discharge pipe for Basepump be connected to the discharge pipe from my primary sump pump?
Yes...and No! We recommend that Basepump be discharged separately to the outside, but sometimes, this is difficult or impossible. The purpose of Basepump is to take over no matter what the reason for your sump pump failure. Keeping it completely independent of your main pump does this. If a clogged or frozen discharge pipe causes your main pump to fail and you have used the same discharge pipe for Basepump, then Basepump will fail, too. However, if this risk is acceptable to you, then you may connect it with the Basepump discharge entering the main discharge at,
or near, its highest point and avoid vertical runs of more than a few inches. If the main pump has a long (more than 6 feet) horizontal run, make sure it runs downhill to the exterior so gravity will work WITH the pump and not against it. Refer to installation instructions for the correct way to make this connection. Many plumbing departments only accept independent installations. Also keep in mind that when you connect the discharges together, there is also
the risk of a check valve failure on your primary pump which can then cause the Basepump to send water down that pipe and fill the basement.
Q. How long will Basepump operate during a power failure?
Basepump will operate as long as your municipal water supply is available. It is designed to empty the sump pit nearly to the bottom each time before shutting off. It will turn itself on and off automatically (just like your main pump) until the problem with the main pump is corrected (the power comes back on).
Q. How do I buy a Basepump?
Click on the link for your state in the main menu at the top of any page where you can see if there is a dealer in your area or go directly to Online Purchasing to buy directly from us. We ship everywhere in the US via UPS and to Canada via USPS/Canada Post.
Q. Can I install a Basepump myself?
If you are handy and can make pipe connections, you can probably install a Basepump. If you are a little unsure of yourself when it comes to soldering copper pipe or fitting PEX plastic pipe, we have installation kits available. These kits use No-Sweat push-in type fittings instead of soldered, crimped, or glued ones. They are very easy to use and are approved for use everywhere! If this all seems too difficult or complicated, call a plumber!
Q. Does Basepump cycle quickly or does it run long enough to empty my sump?
With Basepump you get a pump that can be pre-set to run long enough to empty your sump all the way to the bottom of the suction pipe. This means longer pumping cycles and complete pump-down to relieve hydrostatic pressure under the basement floor. Some backup sump pumps have a float mechanism that turns the pump on and off with very short run times in between. This means the water in the sump remains at a high level and the pump is cycling on and off very quickly. Basepump operates more like your main pump that removes most of the water in the sump each time it runs and keeps the water level down low.