Originally Posted by 32quarters
If you do not have a gauge then you have no idea what pressure you are pumping at. The purpose of a gauge is to allow you to have consistent, repeatable pump sessions. Going by “feel” does not do this.
Actually this is possible, there is an accurate and consistent indicator - the pain threshold.
If you start to feel pain from the vacuum then it is too high, if you feel a comfortable stretch with no pain then it is just right and will give you gains.
It obviously takes a bit of practice and familiarisation with how different pressures feel by doing normal air pumping with a pressure gauge. Once the sensations are memorised, hydropumping can reach the expanded state a little quicker, there is usually a very good seal between the cylinder and the skin so only tiny squeezes on the pump trigger are required to maintain the sweet spot pressure.
I would have liked to have a pump gauge that works with water but I didn’t have any luck with mine. Hydropumping is less forgiving and I have had a few pressure related injuries, I was testing to see if I could increase the vacuum but most of the time I didn’t have any issues.