In this section you will find all the information regarding how the Bathmate pumps work, why they work as stated and how to use them correctly. We recommend watching the videos to understand the characteristics and structure of the human penis, what the water pumps do to grow penis size  and how to use them correctly. To see all the videos, please click here.

How to use the Bathmate pump

See this video to understand how to correctly use the Bathmate pumps. To see all the videos, please click here.


how to increase penis size with a bathmate pump

1. Your penis is divided into three chambers, two larger ones in the upper section  — called erectile tissue (corpora cavernosa) — and a smaller one located at the base of the penis, through which you urinate and ejaculate (corpus spongiosum).


2. When sexual maturity is reached, the brain releases a hormone that sends blood to the penis, which causes the erectile tissues to fill with blood. The blood expands through the corpora cavernosa and an erection occurs.



When using a Bathmate pump, the water around the penis has a negative pressure that creates a uniform suction force around the entire penis. This produces a flow of oxygenated blood to the cavity of the penis and it grows.

With the correct use of the pump, more and more oxygenated blood will reach the spongy chambers of the penis, generating more cells to accommodate more blood in the penis. By increasing the capacity to lodge more blood in the tissues, the penis will increase in size.



First, you will increase the thickness and girth of your penis followed by the length. Even in flaccid state it will be bigger. In general, after 1 to 3 months, the length will begin to increase. The more constant you are in the use of the Bathmate pump, the thicker and longer your penis will be. A 15-minute session is recommended 3 to 5 days a week.



The increase in size is observed in both erect and flaccid state. Furthermore, men whose size in flaccid state is smaller will see quicker and more significant results. You will start seeing results from the first session.



Just like with the weight training, if you go to the gym once a week you will not notice the same results as if you go 3 or 4 times a week, in which case you will then begin to see significant changes.


Start by relaxing in the shower or in the bath tub for about 5 minutes, then fill the pump with water. Press the pump against the pelvis and start pumping until you have created a vacuum (suction). As your penis expands, the pump will expel excess water at the top each time you press down. Each time you do this you will reach a point where you feel a good pressure but without experiencing pain. After 5 minutes, press the valve down to release the suction. Repeat the pumping 2 more times for an accumulated session of 15 minutes in total. We recommend using the pump between 3 and 5 times a week. It is very important not to exaggerate the pressure in the beginning, let your body get used to this exercise gradually.

Please visit the instructive videos section for a better understanding of how to use a Bathmate pump. Remember to always follow the instruction manual that comes with the pump.



Here you can download the user manual for each of the 3 categories (PDF):
Hydro 7
Hydromax 5, 7, 9
HydroXtreme 5, 7, 9

* All statements regarding the products listed at Bathmate Store are based on the experiences of other users of the same products, however they do not constitute a guarantee with respect to the results that a person may have in their particular case.

Hydro Category (Basic)

Hydro 7 (between 5 and 7 inches)

Rated 5.00 out of 5

Hydromax Category (Intermediate)

Hydromax 5 (up to 5 inches)

Rated 5.00 out of 5

Hydromax Category (Intermediate)

Hydromax 7 (between 5 and 7 inches)

Rated 5.00 out of 5

Hydromax Category (Intermediate)

Hydromax 9 (between 7 and 9 inches)

Rated 4.00 out of 5

HydroXtreme Category (Premium)

HydroXtreme 5 (5 inches or less)

Rated 5.00 out of 5

HydroXtreme Category (Premium)

HydroXtreme 7 (between 5 and 7 inches)

Rated 5.00 out of 5

HydroXtreme Category (Premium)

HydroXtreme 9 (between 7 and 9 inches)

Rated 5.00 out of 5

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