Hi , Im happy to have help from people that know what they are doing!! This is my first time with a pool and my boss has recd this site. We just received the water in our above ground pool, its about 7 years old and we got it from a friend.We purchased a new liner and coving. Interested in doing the chlorox instead of pool store stuff. We have a sand filter and going to try and start it tonite. We realized yesterday the hose had a tear in it . So should we use shock from the pool place to start? We got a deluxe kit that was recd. Our pool holds 12,000 gallons. any advise would be great. THANKS :?