A duckboard
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.
The purpose of the trench warfare was so that defending units could be protected by small fire and sheltered against artillery
Tanks were meant to break the stalemate of trench warfare
A trench stretch is a long system of trench.
A duckboard
You would need a sump pump repair if the sump pump in your basement is not pumping out water. The purpose of a sump pump is to drain excess water that is part of your waterproofing system.
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.
The sump is the oil reservoir. An oil pump lifts the oil from the sump and forces it under pressure through the engine. The oil then returns to the sump to be used again. Some sumps have fins on then - this acts as a cooler to help cool the oil in the sump.
drainage and duckboards :33<
drainage and duckboards :33<
drainage and duckboards :33<
The purpose of the trench warfare was so that defending units could be protected by small fire and sheltered against artillery
to get tattoos(:
they built trenches for procetion and they used it as a base.
To prevent compressed gas passing into the oil sump of the engine of an automobile.
"A sump is a low space that collects any often-undesirable liquids such as water or chemicals. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers.One common example of a sump is the lowest point in a basement, into which water that seeps in from outside the house flows. If this is a regular problem, a sump pump that moves the water outside of the house may be used."--wikipedia