stiction /stuck valve /pump dimples

[subhash]

hi, At times I am able to inflate at the first shot (that is I hear the 'pop' sound) but there are times when the bulb goes flat. Then it takes between 15 minutes-5 hours of repeated attempts to hear the 'pop' sound.

Please can you all share what needs to be done so that the first attempt is always a success?? let us create a group of such people so we can share our tips and tricks.

please do share . What I generally do is press the inflate and deflate at the same time, but there must be some other options as this does not always work either