drain grates

'Through the past two years,' wrote Mark Holden to start his January/February 2011 Currents column in WaterShapes, 'a handful of voices in this magazine and elsewhere have called for building pools without drains as a means of virtually eliminating suction-entrapment incidents.  The response to this suggestion has been strong, both for and against.' 'In sifting through some of these discussions . . . one item caught my