I have a requirement to pump water out of an area below the main river flow, and am considering using a ram pump for this. The main river has plenty of water (over 3000 litres per second) and a head difference at the weir of just over 1m. The area to be pumped lies a further one to two metres below the river, so will need to be raised by 2m to discharge back into the river. Pump flow rate would need to be about 200 litres per second. The pump is required to keep the water level below a fixed level, and will not be required to run continuously - simple automatic starting when required would be ideal. Any ideas on a suitable product to achieve this, where I could obtain one and what it might cost?
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