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As we have already established, the important operational requirements for the Papa water powered pump are a combination of flow & heads, however, in practice it is worthwhile considering other aspects before deciding on the best siting for the pump.

 

• Don't be automatically drawn towards large rivers and streams. It is important to remember that a good 'Supply Head' with low flow can be as good as or better than a high flow with a small 'Supply Head'

 

• Spring water-fed supplies tend to maintain a more regular flow than over ground supplies and often the water quality is better

 

• Take into account the pumping distances, pipe friction will cause losses which will rapidly increase by using small-bore pipe. Check the frictional losses by referring to the Friction Chart below and include them when calculating the pump output and choosing the delivery pipe size.

 

• The terrain may be important if there is much groundwork to be carried out. Digging rock can be difficult!

 

• Don't be put off by what appears to be a 'flat' river or stream. It is often surprising what head can be achieved - for instance, a fall of 10mm per metre over 100 metres will give a 1 metre head. Going over relatively long distances to secure the required head may not be as expensive as you might think. By installing non-perforated land-drainage pipe as a duct, laid and buried in a trench using a modern mechanical digger, it is relatively easy and inexpensive to gravity-feed large volumes of water hundreds of metres with a very small head loss. It is usually possible by doing this, to create the necessary 'Supply Head' required to facilitate a feasible fuel-free pumping system.

 

• Spend time deciding on the most appropriate site for your Papa water powered pump. If necessary, borrow or hire a site level to assist the survey.

 

• Check your land boundaries before undertaking long-distance groundwork. Neighbours can be very sensitive over such issues but remember, everyone needs water, including neighbours. Why not get them involved!