A huge stormwa­ter reten­tion basin, part­ly with dammed embank­ments, has been con­struct­ed at the new indus­try park WHA East­ern Seaboard Indus­tri­al State 4, in Ray­ong, Thai­land, to safe­guard against mon­soon flood­ing. The no-main­te­nance and pow­er-free flow reg­u­la­tor HydroSlide MINI DR 1400, here with an out­flow of 4,000 l/s, pro­tects the low­er lying area …