Now then I used to be a member on here about a year ago but I've completely forgot my password so using this one , any ways I have a weirauch hw100kt .177 which is absolutely pissing air out of its cylinder when filling it can drop from 190 to 150bar in seconds or as today it went from 190 to 0bar in about 2seconds it's making a very loud hissing noise as you'd expect it seems to be coming from the gold bit on the gun which the cylinder screws onto , but I don't no nothing about fixing Guns so don't know how to go about it , is it a big job to get it fixed ? Any help would be appreciated thank
