what is the purpose of the sump? what was normally placed over it?
<answer> The main purpose of a sump in a trench is to drain the water that collects at the bottom of a trench.Duck boards were usually placed over the sumps. <context> What was normally placed over the sumps? Duck boards were usually placed over the sumps but they weren't always too usefull, they barely stopped rthe sump from reaching the soldiers and it wan not at all uncommon to … get trench foot. Answered