Price of my Tango 12 was about 100$ It quite expensive in Viet Nam So I tried to replace problem of my ball’s valve. It releases a lot of air You can buy valve of the ball at Amazon or Ebay. Or you also ask to buy it in Ball Factory if near you. This is a glue that i used to stick the valve and ball together. I used the popular glue brand in my country. And you can buy easily near from appliances shop near your house. Now i will try to do it ! Wait me for a while OR you can skip to 0:50 I’m taking a glue in order to add in the valve’s hole. Now I put the valve into the hole It quite hard to do. OK ! I did it ! Now, i can pump and play it normally DONE ! Thank all of you for watching me !