Hydraulic ram pumps and Sling Pumps

figure 5.275.2 Reservoir with factory-made mould¹5.2.1 General advice5.2.2 The mould5.2.3 Foundation slab5.2.4 Foundation on unstable ground5.2.5 Assembling the mould and placing the reinforcement5.2.6 Placing wire reinforcement5.2.7 External plastering of tank was5.2.8 Removal of mould5.2.9 Internal plastering of the tank wall5.2.10 Screeding the tank floor5.2.11 Roof support pier5.2.12 Roof slab shutter5.2.13 Roof reinforcement5.2.14 Concreting roof slab5.2.15 Removing shuttering5.2.16 Alternative roof structure5.2.1 General adviceIn Chapter 5.1, detailed advice was given on the entire procedure of building a ferro-cementstructure. This and the following chapter will only mention the differences in the technique employed.This means there will be no advice on curing the plaster and concrete, including the repeatedcovering with plastic sheets and splashing with water. The general plastering technique will benamed but not explained in detail. Mixing the plaster, testing, sifting the sand etc. are explained inChapter 3, and remain the same for all types of ferro-cement tanks and waterproof plastering ofreinforced bricktanks. The advantages or disadvantages of the various tank structures should firstbe established by consulting Chapter 2.5.2.2 The mouldThe mould is an expensive capital investment which, if carefully handled, is good for ten to fifteenstructures. Since it involves the bending of corrugated galvanized sheets as well as welding, itshould be manufactured by a well-equipped.workshop experienced in this type of work.The mould is constructed in six sections. This is necessary to reduce the weight and make it easy tohandle, especially when it has to be removed from inside the tank. The sections are fabricated from45