You rarely expose raw steel to the elements, unless itâs the weird kind that can build up a protective rusty coating. You usually paint it or dip-galvanize it or cadmium-plate it, and then it can last 50 years easy. Aluminum can be left out and it will be fine for 50 years, it will do better if painted or anodized.
Wicking is the absorption of a liquid by a material in the manner of a candle wick. Paper towels absorb liquid through capillary action, allowing a fluid to be transferred from a surface to the towel. The small pores of a sponge act as small capillaries, causing it to absorb a large amount of fluid.
Swabbing Unit. Swabbing is a process to remove liquids from the production zone of a gas or oil well. Gas and oil wells produce fluid over the life of a well. When a well is first drilled it is usually Fracked to help open production zones. Fracking can include water. After fracking the liquids are recovered by swabbing the well. As liquids are lifted to relieve the hydrostatic weight from the producing formation the bottom-hole pressure pushes the gas and/or oil up and out of the well.