It's more complicated. First, what voltage is the water pump powered by, low voltage DC or AC mains? No matter which power method is used, a battery must be added, so it's best to use one? DC low voltage water pump, which can be used directly connected to the battery without a voltage converter; then, according to the water pump power, conversion efficiency and electricity charging time ratio, finally calculate the area of the solar panel; A reasonable charge and discharge protection circuit is designed to be used.
Theoretically it can be connected. As long as you know its voltage and power rating and calculate the relative voltage and power, you can connect and use it. Remember not to exceed the voltage range to avoid. Burnout. . Other solar panel connection methods can be foundon Flygt Pump Industry. I hope this will be useful to you. However, I personally think it's best to test the water pump you don't want for the first time.