Insert pump hose in to quick coupler on top of cylinder, push until you hear an audible click. This means the hose is locked in. To release the hose push tap on side of the coupler, coupler will retain vacuum. To release vacuum turn coupler counter-clock wise. Lube your penis and or testicles, this helps create a seal around the base and helps the tissues and skin to stretch. Keep well lubricated at all times. Press base of cylinder against your groin. Pump the handle on the pump to create the vacuum. The level of vacuum you are able to handle will vary with skin type and experience. For beginners, it is recommended the tube be removed every 15 minutes for a 1 to 2 minute rest period.
Caution: If you notice red spots or blood blisters immediately stop pumping and allow time for them to heal before resuming pumping. This indicates that your skin is not yet ready for that level of vacuum or length of time. Pumps are capable of a high level of vacuum. Common sense must be used!