New to pumping

Hey guys, I purchased a pump a few days ago and can’t help but feel like I’m doing something wrong. I get the vacuum to 3-5 Hg but my penis isn’t bloating up instead its pulling more of my base into the vacuum. Is this because the cylinder is too big? Would I get better girth results by using a smaller cylinder? Thanks guys!

Did you size based off of the pumping 101 post reference guide? Sounds like the cylinder may be too big, but we need more details like your penis girth and cylinder size.

This might be helpful.

Selecting Your Cylinder Size

Thank you for the responses guys! To be honest I just purchased on from a store nearby and didn’t check this out.. Wondering how I could get specific sizes, possibly make one at home from Ontario Canada..

I will post stats when I measure them but from the top of my head:

BPEL: 6.0” x 4.7”

Looks like I will need to DIY a pump my size.

2, 2-1/4, and 2-1/2” are the most common sizes, but you can buy tubes anywhere from 1-3/8” to 5”. The larger tubes are intended for “package pumping” and use a special gasket to reduce the opening size.