Carolina,
What's the CYA level in your pool? If it's very high, which it almost certainly is, you may not want to make it even higher by continuing to use trichlor. Also, if you haven't already done so, consult Ben's Best Guess Table to see what level of chlorine you need for normal sanitatizing and shocking.

Don't pour bleach into the skimmer as doing so can cause your chlorinator to explode. This can happen even if you don't have any pucks in the feeder.