You carry out an inspection in the following order:

– turn off a gate cap;

– apply on the gate liquid so that it filled with itself diameter of the gate;

NOTE For tightening of the gate it is necessary to use only a metal cap.

– at formation of a bubble wrap the gate a reverse side of a cap;

– repeatedly check the gate in the specified way. At further education of bubbles and at impossibility to dovintit the gate, replace it;

– screw a cap on the gate.