Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices

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Arrangements or adaptations of tanks for water supply (water-butts E03B3/03; storage aspects B65D, B65G, F17B, F17C; foundations E02D27/38; construction or assembling of bulk storage containers employing civil engineering techniques E04H7/00; tower aspects E04H12/00) > for public or like main water supply > Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices