New to air pumping, Hg question.

Hello, I’m starting air pumping (previously used water pumping without a gauge for over a year.) using a break bleeding kit as the pumping device. My problem is with the gauge not being responsive for the first few pumps despite pressure increasing. The gauge remains at 0 for the first 5-6 pumps, reaching 5Hg within 18-20 pumps. I bought another pump to test if it was an issue with the pump itself. Both have the same reaction to pumping the cylinder, 5-6 pumps 0 Hg. I seem to remember when I first bought it the gauge immediately increased when pumped however it was quite a while ago so my memory might not be accurate. Full disclosure I attempted water pumping with a water reservoir to catch the liquid, I do not see how that would affect the pressure reading unless it messed with the valve in the pump, which is one from Thickwall and built to be used as either an air/water pump.

So asking you guys, is it normal that the gauge doesn’t update for a few pumps despite pressure increase? Have any of you experienced this?

How large is the cylinder you are using? If it’s a large cylinder for water pumping but without water, the pump has to evacuate a lot of air before you will get a guage reading.

Another possibility is your pump accidentally sucked in water and ruined the seals.

12 inch, so for confirmation you’re saying this is not normal? I figured as much. The one I own is this.

And this is the connector

I’m not very informed with which parts are named what with pumping, what are you referring to when you say “ruined the seals”? The connector? And I believe the pump is for air pumping primarily it’s just that it can be used for water pumping. I do seem to remember the Hg gauge was more responsive prior to water so knowing this what should I try as a cheap solution, another connector maybe? Thanks for your time.

The common vac pump has a rubber diaphragm, aka seal, which can be stretched out of shape when fluid passes through it.

This type vac pump can be used for water pumping as long as the fluid does not enter the pump. Brake bleeder kits have a water trap (small cup) which is inserted inline between the cylinder and the pump to catch any surging fluid before it reaches the pump.

The seal/diaphragm can also lose effectiveness from age as it loses its elasticity and thus is unable to fully seal.

Some brake bleeder pumps have rebuild kits which are about half the cost of a new pump, but if the pump has had water in it rust will likely occur which will also prevent a good seal.

Sorry for the misunderstanding. When I was talking about a large cylinder for water pumping I was talking about a cylinder with a diameter of 4 inches or more that holds a large volume of water and is for full package pumping.

The seals that will be ruined by water are the internal seals inside the pump that create the vacuum and would be similar to this with the seals inside the brass barrel. Does your pump look like this? If so, you have to prevent it from sucking water inside it. It’s air only.

Penis Pump ULTIMA Blue, Red or Black | 9 or 12 Inch Length, 1.35-3.70

Here is a pump that can pump air and/or water. I have never used it, it’s just for illustrative purposes.

I should have not confused your issue by talking about using a large cylinder for air or water pumping. As a new guy to pumping you would not have knowledge of the type of equipment I was talking about, but I would like to show it to you. Maybe something to think about in the future.

This website might not work too well on a phone, but would be better on a laptop or larger. It has a plethora of pumping equipment, but the following link shows a large cylinder called a LongJohnny that I have used for water pumping. All of their equipment is top of the line.

https://www.pum ptoys.com/catal … gJohnny-15.html

I have been using a brake bleeder pump for over 10 years, but only as an air pump. I normally have to pump 6 or 7 times before the needle starts to move. During this time, my dick is slowly expanding until it reaches about 75 - 80% of its max expanded size. Than a few more times until I reach 5 hg. After that, I then have to pump two or three times every 5 minutes or so to maintain it at 5 hg until it reaches full expansion after 15 minutes in the cylinder. My 1.75” diameter tube is fully packed after 15 minutes. It takes 20 - 30 minutes to fully pack my 2” cylinder.

This is what I’m talking about, the pump itself seems to work as new as I’ve tested the same system with a brand new pump & got the same 0 Hg readings. I just found it peculiar the needle isn’t moving despite some pressure increase. I think it’s working as intended and I’m just overly cautious about over pumping. Could I ask next time you pump, around how much is a “few more times until you reach 5 Hg”? Just wondering if it’s similar to my experience. Thanks for all the replies.

I’m using a pump designed for air, I got confused with thinking you meant a part of the cylinder may of been messed up by water pumping. I originally thought it’s possible water may of gotten inside the pump and messed with it but now I doubt it as it works just the same as my newly ordered pump.

A 12” cylinder is very large and will take many more cycles of the hand pump to evacuate the air. You will not be able to compare number of pumps with someone else unless they have they exact same cylinder, the same vac pump and similar size flacid penis.