The piston valve is designed to come out for maintenance. If you over extract the piston valve, push it back in with your finger and twist the vacuum knob to re-engage it.
For the most effective vacuum sessions with the SiliStretchers and SiliSleevs, follow this guide below.
Make sure your entire penis is shaved clean of hairs
Hairs will create loss of suction with SiliSleevs and the SiliStretcher .
Make sure your penis is clean, dry and free of oil
If you put lotion on your skin, this will cause loss of grip . Your skin also has a natural oil that can cause loss of grip. Sweat causes loss of grip. We strongly recommend cleaning and drying your penis then using
MOSGrip to remove all the natural oils of your skin and create a tack for maximum grip.
MOSGrip also helps eliminate sweat under the SIliSleev .
Make sure your SiliSleevs are clean, dried and powdered with MOSGrip
Dirty oily SiliSleevs with pubic hairs in them will cause loss of suction/vacuum /grip . You want to clean your SiliSleevs before each use
Make sure you do not have a pin hole in your SiliSleev from excessive use
Pinholes are easiest to find if you blow up the SiliSleev with a little air from your mouth. Don't blow them up In a big balloon. Pin holes are like a slow leak in a tire.