what size of submersible pond pump would be required to pump water approx 650 gls per hour , straight up 3 meters,and what would be the wattage required,

To calculate the size and wattage of the submersible pond pump required to pump water at a rate of 650 gallons per hour (gph) straight up 3 meters, we need to consider a few factors.

Step 1: Convert gallons to liters:
Since the metric system is more commonly used for pumps, we need to convert gallons to liters. One gallon is approximately equal to 3.785 liters. So, 650 gph is equal to 650 x 3.785 = 2459.25 liters per hour.

Step 2: Determine the Total Head:
The Total Head refers to the total pumping height or vertical distance the water needs to be lifted. In this case, it is 3 meters or approximately 9.84 feet.

Step 3: Calculate the Pump Flow Rate:
Divide the liters per hour by the hours in a minute to get the flow rate in liters per minute (LPM). There are 60 minutes in an hour. So, 2459.25 liters per hour divided by 60 minutes per hour is approximately 40.99 LPM.

Step 4: Select the Pump Size:
To determine the required pump size, you would need to consult the pump manufacturer's specifications or performance charts. Typically, these charts provide flow rate data based on the total head or pumping height. Look for a pump that can deliver at least 40.99 LPM at 3 meters of head. Keep in mind that it's always a good idea to choose a slightly larger pump to account for any future needs or losses due to friction in the plumbing system.

Step 5: Calculate the Wattage:
The wattage required by the pump can be obtained from the manufacturer's specifications or performance charts. The wattage depends on the pump's efficiency, motor size, and flow rate. While I can't provide a specific wattage without knowing the pump's specifications, it is generally mentioned alongside the pump's flow rate in the manufacturer's documentation or on their website.

By following these steps and consulting the pump manufacturer's specifications, you can determine the appropriate size and wattage needed for a submersible pond pump.