pumped your rifle up to what pressure? If you don’t mind, I ask as I’m brand new to these pcp airguns. I purchased a small compressor at the same time that I purchased the rifle. On the third time filling the tanks on the rifle the compressor just stopped running when it was almost done pumping air in, it turned out not to be a compressor issue but rather that little power supply box that you plug it into to use 110 volt AC current. the compressor works fine hooked to my truck battery. Having the power supply fail though started me thinking I should have a backup manual pump. My rifle can take up to 4500 psi, everyone I’ve ask so far tells me I could never reach that kind of pressure with a hand pump. So I haven’t gotten one yet. Do you like the one you have? I’m going to get one as a back up and if you’re happy with yours possibly you could let me know it’s branding?