With no chlorine in the pool, you probably have an algae bloom starting and thus will have a CC reading which is probably what you are smelling. Time to shock the pool! Take a look at the Best Guess Chlorine Chart in my signature below.
Also, are you still using the trichlor? If so, you should NOT be. Your CYA level is already too high and the trichlor will cause it to continue to rise.
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