Not at the doseage that Ben has given you, as long as it doesn't splash on the sides during the addition. The algae in the water will consume the chlorine pretty quickly, so you're not going to have that much bleach in the pool for very long. And I don't know if you ever got a good stabilizer level or not, but if there's any CYA in the water, the amount of bleach Ben is having you add will probably not even do much to clear up the pool--rather, it will help the situation not get any worse until you get back.

Just make sure that he either pours it in through the skimmer (as long as there is no other chemical in the lines) or pours it slowly, without splashing, into the return stream. Either way will help disperse it through the pool quicker. As a caution, tell him to wear old clothes--I've been putting bleach in my pool for 9 years, and I STILL ruin at least one new shirt each season.

Janet