Let me start by mention thos tools,
Number one tools needed in colibration of nozzle are a active battery, two good wire then lastly a hose that doesn't have lickage, with all this requirement your very good to go they next thing is to connect they battery with they wire insert they hose hole to the head of the nozzle pure a lubricant inside hose hole make sure the wire from the nozzle head to battery by taping the wire with the battery head it will calibrate thanks for your understanding
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