Is there someone that can drop by every other day to put in some chlorine? A 1/2 a gallon of bleach would add about 3PPM so if they put in a bottle every second day, that should keep the chlorine on the high side and you should keep the algae away. If you can check how quickly you are using chlorine now, you can figure if a jug every 3rd day would be ok. I keep it simple for whoever is helping, no testing or partial bottles, etc, just put in the whole jug. Sometimes I have even written the day on the bleach bottle.

I wouldn't trust pucks in a floater for 2 weeks, just IMHO I haven't had much success with floaters.