Choosing a pumping plant is an engineering proposition because it is essential to make sure that every item of the equipment is of the right size in relation to the remainder and is also of the right type so that the whole can be assembled into the correct plant for the particular job. It is worth while making sure beforehand that every detail of the plant to be supplied is correct. Over one hundred years' experience enables us to decide and recommend what will be the most efficient, and eventually the least costly, equipment for any water scheme. If you will let us have the details set out below we will send you a carefully considered recommendation and estimate for the most suitable plant for your particular purpose. For pumping underground water For pumping surface water - from Bores and Wells - Creeks, Dams, Bore Drains, Earth Tanks - 1. The depth of the bore or 12. The source of supply. well. 13. The distance along the ground 2. The size of the bore casing from the water to the point at (outside diameter), or the which it is proposed to instal size of the well. the pump. 3. The distance from ground 14. The vertical height from the level to water level. lowest water level to the 4. The maximum hourly supply point at which it is proposed available for pumping. to instal the pump. 5. If the water is pumped at 15. The information asked in ques- the maximum rate of supply, tions 6, 7, 8, 9, 10, and 11. how far will the water level be below the ground level If new Windmill Head only is then? required. 6. The height the top of the tank 16. Size and make of old mill or reservoir into which the 17. Height of old tower above water has to be pumped is ground level. above the ground level at the 18. Whether tower is three or pumping site. four legged. 7. The distance the tank or 19. Size of pump installed. reservoir will be placed from 20. The distance from ground the pumping site. level to the pump. 8. The maximum height of obstruc- 21. The size of the pump de- tion, if any, in the vicinity livery piping or casing. of the pumping site and how far 22. The size and type pump- away. If there is any doubt rods being used. about the prevailing winds 23. Whether you wish us to easily reaching the site, des- supply a connection to cribe the site as fully as connect the new windmill possible. rod to the existing 9. The quantity of water required pumprods. daily (To estimate this see 24. The information asked for below). in questions 1 to 10 in- 10. What the water is to be used for. clusive if pumping from 11. The size and type equipment, if bore or well; and ques- any, you already have which you tions 6 to 10 and 12 to 14 wish to use on the job if pos- inclusive if pumping sur- sible. face water. Select the image below closest to your proposed layout.
HOW TO ESTIMATE THE QUANTITY OF WATER REQUIRED DAILY To estimate the quantity of water required daily allow :- 4.5 litres per day per head 36 000 litres per day per of sheep. hectare for garden purposes. 45 litres per day per head of (This is based on providing cattle or horses. the equivalent of 25mm of rain 90 litres per day per head of per week over the garden). dairy cattle. 220 litres per day per person for domestic use; that is, household purposes, septic tank installations, shower baths, etc., in an average home.*HOME.........................................
