TM 5-4610-223-12
(5) Remove elbow (1) from diatomite dilution tank (10).
c. Inspect. Inspect tube and fittings for damage.
d. Replace. Replace all damaged parts.
e. Reassembly and Installation.
(1) When a new tube is required, cut to length, making sure the ends are cut squarely with the tube wall.
(2) Use a tube of the same length and size as the old one.
(3) Install elbow (1) into diatomite dilution tank (10) and screw tee (8) onto nipple (7).
(4) Screw valve (9) into tee (8) and install adapters (2) into elbow (1) and tee (8).
(5) Install hose coupling (5) into valve (9) and install hose assembly (6) onto coupling (5) and secure with
clamp (3).
(6) Install both ends of tubing (4) on adapters (2) and secure with clamps (3).
4-98. COAGULATED WATER PIPING FROM TOP OF WET WELL TO THE TWO 3 WAY PLUG VALVES.
a. General. The piping is painted yellow and is used in recirculating the coagulated water from the filters to the
wet well. It is held in position with U-bolts and pipe clamps.
b. Removal and Disassembly.
(1) Remove clamps (2, fig. 4-80) attaching pipe (5) to van ceiling.
(2) Remove U-bolt attaching pipe (6) to side of wet well.
(3) Disconnect union (4) from pipes (3 and 5).
(4 Unscrew pipe (3) from elbow (1) and lift elbow (1) with pipe (6) from wet well (7) and remove elbow (1)
from pipe (6).
(5) Disconnect other union (4) from pipes (3 and 5) and remove pipe (5) with fittings that have been
disconnected from the unit.
(6) Unscrew pipe (3) from elbow (1) and elbow from pipe (12).
(7) Remove pipe (12), elbow (11), nipple (10), and tee (9).
(8) Remove two washers (3, fig. 4-81) and nuts (2) securing U-bolt (1) to pipe support (4).
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