Hi there, hopefully someone can help. I just had my Dacor Viper setup serviced, the 1st and 2nd stages. I just picked it up and noticed when I hook it up to the tank and turn on the pressure after a minute or so the 2nd stage starts to leak air a bit, If I shake it or purge it it goes away for a few seconds then comes back, this only happens with the primary and not the octo. Any ideas?