2-11. ASSEMBLY AND PREPARATION FOR USE - cont.
Movement to Assembly Area. After location of source pumps and storage and distribution points have
been determined, select an assembly area to unload all components of the TWDS system.
Components are unpacked according to like items, inventoried, inspected and serviced if necessary.
Movement to Installation Sites. Place pump stations and storage/distribution points at selected
installation sites. Place flaking boxes and other equipment used during flaking operation at selected
area. Place TRICONS at a selected area for easy access.
Place TRICONS, water tank storage chests, water pumps and hypochlorination units at selected
Unload 600 gpm pumps, flaking boxes, 125 gpm pump, hypochlorination units and 20K
collapsible fabric tanks. To aid assembly, separate components into groups of similar parts.
Unpack contents of each TRICON. To aid assembly, separate components into groups of similar
parts during removal. For example, group all the 4-inch discharge hoses together, then all the 4-
inch gate valves, 2-inch discharge hoses and so on until all components are unpacked.
Connection of Quick Disconnect Couplings. Refer to figure 2-12.
Components of the distribution point and water storage kits are equipped with quick disconnect
couplings to permit rapid assembly and disassembly. The following instructions apply to
installation and removal tasks for this equipment.
To prevent system contamination and damage to the equipment, use
care when connecting couplings to avoid getting dirt, sand and debris on
coupling mating surfaces or in hoses. To prevent leaks and ensure tight
connections, make sure gaskets are installed in all female quick
Lift locking arms (1) up and out from female coupling (2).
Remove plug (3) from female coupling (2).
Lift locking arms (4) up and out from cap (5).
Remove cap (5) from male coupling (6).
Position male coupling (6) in female coupling (2) and hold in place.
Pull both locking arms (1) back at the same time until arms are down against body of female