Glass Plate Negatives Series 2 - 1909 - 1959

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Walton filters sand ballast etc. and ejector hopper in No.3 filter

Walton Filters section of sand No.1 filter

Walton filters suction tank from reservoir bank

Walton filters technical drawing

Walton filters venturi cone in outlet of No.5 filter

Walton filters, back ground under inlet to No.5 filter

Walton filters, back ground under wall between No.3 and No.5 filters

Walton Filters, extension inlet chamber

Walton Filters, extension welding reinforcement in pipe

Walton Filters, extension welding reinforcement in pipe

Walton Filters, general south view primaries in distance

Walton Filters, general south view primaries in distance pumping station on left

Walton Filters, general south west view

Walton filters, general view from reservoir bank west end

Walton Filters, No.1 bed being cleaned

Walton Filters, No.1 filter full looking north east

Walton Filters, No.1 sand in north west corner after experimental covering

Walton Filters, No.1 sand in north west corner after experimental covering

Walton Filters, primary building and secondaries from reservoir bank

Walton filters, primary filter house, north front

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