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How to Make a Proper Compression Nut Tubing Connection
If you have the EC-Jaco model, then your RO System has been designed with the most reliable compression nut fittings available (see
previous section for information on quick-connect fittings). It is important that the manufacturer's instructions are followed
carefully to ensure a leak-free connection.
Always make sure to cut tubing ends square. The cut end must be free of burrs and sharp edges. For soft thin walled plastic tubing,
we recommend the use of a tube stop/insert.
1) Press tube stop/insert into inside end of tubing.
2) Insert the tubing through the back of the nut all the way through the nut assembly to the tube stop in the fitting body. If the
tubing does not enter the nut easily, loosen the nut one turn and then insert the tubing all the way to the tube stop.
3) Turn the nut hand tight.
4) Wrench tighten the nut 1-1/2 to 2 turns.
5) All nuts must be retightenened when the system reaches projected operating temperature.
NOTE: It is not necessary to fully remove the fitting nut for application. Merely loosen the nut enough to insert tubing all the way
into tube stop and tighten nut.
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