I have a 15''x42'' intex pool with a hole in the side bottom of pool with water in it how do I go about fixing it with water still in the pool or do I drian the whole pool I only have the patch kit that came with the pool.

Pretty small pool unless we have a typo here. The patch kits use a glue that works under water, do not drain the pool. How to Patch a Swimming Pool | eHow.com