Silca Pista Plus with Presta Chuck

Just splurged on this very nice pump. But struggling a ton with the chuck. It won’t seal properly (with multiple different valves on different wheelsets). The chuck seems to be higly rated which leads me to think it is user error, ie I am the problem.

I make sure the nut on your valve stem is unscrewed all the way to the top, and think I press the chuck all the way down. But I can still hear some small leak, and the pressure gauge on the pump confirms that soemthing is off. I also loose a lot of air while pressing the chuck on.

Anyone use this chuck and have some tips on how to use it properly and avoid these issues?

Did you try tightening the bottom piece on the chuck? Tightening the bottom of the chuck compresses the gasket more and thus improves how well it seals.

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Have not tried that. Will do. :slight_smile:

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