6
3
CONNECT THE A1100 TO THE LOWER DROP TUBE
Step 16:
Measure the distance from the top of the 4” riser pipe to the bottom of
the tank (dimension D). See Figure 2.
Determine overall length E.
Self-sealing: E = D-4
Non Self-sealing: E = D-6
The difference is due to the 2” of top tube (spring and top adapter) that extends
above the riser in self-sealing applications.
Mark tube to length E.
These dimensions will position the tube 6” from the tank bottom.
Step 13:
Apply a liberal coat of pipe dope to male threads of the A1100 base.
Step 14:
Screw male threaded end of A1100 base into threaded end of drop
tube.
Step 15:
Tighten. The use of strap wrenches is recommended in order to prevent
raising burrs on the aluminum parts.
Figure 1
Figure 2
Riser Pipe Installed Inside Manway
Riser Pipe With Spill Containment Manhole
