It's a shame that many quality pool chlorinators are very much available in Thailand, but the management is just being too stubborn. Maybe it's about time that you refer them to PoolMaster? I believe they're the ones who handle the pool supplies of some of the biggest condos in Bangkok. Could be great if you could talk to the management about it. Well, bet you paid for the facilities. If all else fails, contact the local health dept. Best of luck.