In putting my system together i started with the pump.
Solar panel backup sump pump.
The sump300 12v is a small solar first pump that runs efficiently off small arrays for draining and dewatering at high gpm.
Need sump pump solar backup the watchdog is a good idea and you could do something like add a pv to it but i suspect it may not last the 24hrs until the next day for charging depending on the amount of water being talked about governing the on time of the pump.
Unless you plan on expanding the battery bank and pvs it may be better to have a small generator on hand and charge it up that.
Madetec upgraded 2 5w solar water fountain pump with battery backup submersible solar fountain panel kit with 6 spray head for bird bath small pond pool garden and lawn 4 4 out of 5 stars 138 29 99 29.
Solar water pump kit.
To create my backup sump pump system i basically needed to incorporate the basic solar power setup with a pump some electronic controls and some kind of housing to contain it all.
Patrick repper july 28 2020 at 11 28 am.
Great lakes prepping 2 354 views.
The tethered float switch is easy to access for testing the pump.
12v 24v dc brushless submersible 196gph water pump with 10w solar panel for solar fountain fish pond and aquarium no backup battery 3 8 out of 5 stars 74 89 00 89.
Backup sump pump system.
The sump600 is its 24v big.
A solar panels charges a car battery and for emergency it runs off the battery.
Besides it is easier to transport than the more robust models.
I found this sump pump with a tethered float switch that pumps 30 gallons per minute and only uses 1 4 horsepower 186 watts.
Alternately a generator will keep you solar panels up by telling the inverter the grid is up while cutting power to the grid.
Finally a solar sump pump built for high volume draining and dewatering.
Its solar panel comes with a stake and can be placed anywhere due using the 16 feet long chord or even an additional 16 extension if needed.
Solar powered backup sump pump system duration.
Put the sun to work pumping large volumes of water at low heads with the sump300 and sump600.
Using a series of float switches and relays the pump will only turn on if the main sump pump does not.
The solar panel does not need to be capable of running the pump directly.
Keep in mind your grid tied solar panels pack it in during a power outage.