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i. If leak is coming from the push to fit connection, push the tube in further to engage the O-Ring inside
the fitting. See Figure 43. If necessary, disassemble the tower to get better access. If this does not
resolve the issue, replace the Nitro Tower Tubing Assembly. Refer to Appendix I: Disassembling The
Tower to see how to disassemble and reassemble the Tower.
ii. If the leak is coming from the threaded end, tighten the fitting. If this does not stop the leak, replace the
Nitro Tower Tubing Assembly. See Figure 43. Refer to Appendix I: Disassembling The Tower to see how
to disassemble and reassemble the Tower.
c. Black Elbow Fitting: The Black Elbow Fitting can leak from two locations, the threaded joint and the
compression joint. See Figure 44. If the Black Elbow is leaking, replace Nitro Tower Tubing Assembly. Refer to
Appendix I: Disassembling The Tower to see how to disassemble and reassemble the Tower.
d. 2-Way Divider: The 2-Way Divider can leak from either of the three connections. If leak is found, try to push
the connecting stem or tube in further into the connection. See Figure 41. If pushing the tube/stem further in
does not resolve the leak, replace the Nitro Tower Tubing Assembly. Refer to Appendix I: Disassembling The
Tower to see how to disassemble and reassemble the Tower.
e. Check Valve: The Check Valve can leak on either side, verify which side the leak is coming from:
i. If the leak is from the top push to connect fitting, coffee might spill. Push the fitting in further to resolve.
If pushing the tube further in does not resolve the leak, replace the Check Valve. See Figure 45a and
Figure 45b.
ii. If the leak is from the bottom push to connect fitting, no coffee should be seen. That is, it should be a
Nitrogen Leak only. If there is coffee leaking from the bottom end of the Check Valve, replace the Check
Valve. If there is a nitrogen leak, push the Check Valve further in to resolve the issue. If pushing the tube
further in does not resolve the leak, replace the Check Valve. See Figure 45a and Figure 45b.
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