Use the lifting devices at the top of each subsequent cell to slide the cells together. Use the flume box
assembly procedure outlined below to connect the basins of multi-cell units.
PT2 Flume Box Installation
1. Position Cell #1 on the unit support and bolt in place
2. Wipe down the mating surface by the flume opening to remove any dirt or moisture that may
have accumulated during shipment
3. Wipe down the flanges on both ends of the flume box. On one end, apply a layer of 1/8” x 1”
butyl sealer tape around the face of the flange over the centerline of the holes. Do not over
lap or stretch too thinly at the corners. When it is necessary to splice the sealer, be sure to
press the two ends together to form a smooth, continuous strip. Apply a second layer of
sealer tape over the first layer following the same procedure. Refer to Figure 6
4. Using drift pins to align the bolt holes, place the flume box over the opening in the basin of
Cell #1 and fasten into place. Insert the 3/8” self-tapping screws or bolts from
the flume box into the basin wall as illustrated in Figure 7
Note: Flume boxes furnished with units constructed with stainless steel basins are assembled
with stainless steel bolts, washers and nuts in lieu of self-tapping screws.
5. Apply sealer to the other end of the flume box as described in Step 3
6. Position Cell #2 on the unit supports. Wipe down the mating surface by the flume opening
to remove any dirt or moisture
7. Using drift pins to ensure alignment, draw Cell #2 tight against the flume box
Note: For units equipped with the positive closure plate option, skip step 8 and go to the
positive closure plate section of this document
8. As illustrated in Figure 8, insert 3/8” self-tapping screws in each hole from the flume box
into the basin wall and tighten
Figure 7
Figure 6
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