Greeting all

I had a question regarding a product I just purchased. I just got the Growthflex Penis Pump and I wanted to get some more information regarding proper usage as well as replacement parts and Pumping Lube.

Questions

  1. I wanted to know when should I replace the Silicone Sleeve and what product is recommended when it's time to replace?
  2. As a beginner I want to use the pump gradually I want to avoid any injury and I want the pump to last what are some good methods for a beginner?
  3. Pumping lube what is a good product to get once the trial lube is done?