Snail siphon trap for being mounted under e.g. wash basins, has short perpendicular downpipe provided, where trap is wound upward around tube width and downpipe, so that flowing water stays remains in lower part
摘要
<p>The trap has a short perpendicular downpipe provided, where the trap is wound upward around a tube width and around the downpipe, so that the flowing water stays remains in a lower part.</p>
