A little discomfort with water pump in air equipment

Hi everyone.

I currently doing 30 min air pump, first 5 min at 3 hg , then 25min at 4 hg.

I tried doing a little water pump, only for 20 minutes, same pressure, first 5min at 3hg, then 4 gh.

I put a little water, just to cover my entire shaft. When I was inside, I experimented a little discomfort, not pain. I was relieved when I finished.

When I exit the tube, no problem at all, nice color, no donut, I could get 100% erect without problems. I like it a lot that post-pump experience.

Do you guys know why that discomfort that bothers me?

Discomfort where?

especially at the bottom and middle shaft

it is like the water was forcing my penis to no expand

I am air pumping for 1 year almost and never feel that weird sensation that I felt with water

So I decided to try again this week.

Already done 2 days of 20 minutes (Monday-wednesdey) inside warm water. Not bother at all this time, I enjoyed being in water.

After the 20 minutes pump in warm water, a few jelqs and 4 Uli´s of 30 seconds each. Nothing more, It´s feel really good, very good expansion after workout.

I remember the first time I tried water pumping it felt really different and way more intense, then after that it felt great.
I think it just feels weird when you change things up until you get used to it.