Reverse process when you come back except that you'll need a suction pump to clear the water that's accumulated in the cylinder.
You'll have to use suction pumps to remove the sand.
As you know, the concept of the suction pump is centuries old.
The suction pump later appeared in Europe from the 15th century.
A suction pump is usually used to extract the sand from the seabed.
"Use maybe a suction pump on his ear," Alicja recommended.
Dual-action suction pumps were found in the city of Pompeii.
The chief acknowledged and started the suction pumps that removed the air from the shuttlecraft bay.
Rather, they suggest in a report in the journal Science, it is a suction pump.