![]() ![]() Read: Complete Air Pump, Air Stone, & Sponge Filter Setup Guide What Is A Check Valve And Is It Necessary? Sometimes the aquarist with limited space has to place his pump somewhere below the water level of the aquarium, when this occurs, in order to protect the system and equipment, we can make use of a valve called “ check valve“. If positioned below the water level and a failure occurs, the tendency is for the pressure to return by gravity into the pipe and, consequently, into the pump (which will likely cause irreparable damage). Positioning the pump above the water level prevents that in the event of a power outage, or malfunction (failure or tube clogging), the water returns through the air tube, due to gravity and capillarity, which will likely damage your equipment, in addition to the risk of drain out the water of your tank, which is not good, potentially causing damage. Read Also: Do Bettas Need Air Pump? Can Air Pump Go Below Tank? In addition, the physical movement of air bubbles within the water column will “pull” along the water, creating a certain “current” and causing a constant flow of water inside the aquarium, where all the areas will receive renewed water through the gas exchanges promoted on the surface. This will promote beneficial gas renewal to the system. It is very easy to understand why to inject air into the system, its advantage is simply to cause a disturbance in the water, thus breaking the surface tension, which (due to osmosis) promotes gas exchange, leading to CO² molecules (and other various gases present in our aquariums) to the outside, and the O² (and other atmospheric gases) into the tank. In addition to its complementary use to maintain good health in the tank, this type of pump is also used for ornamental purposes, creating effects and bubble curtains. However, it is not capable of removing impurities from the water or, transforming ammonia into nitrites and nitrates. It has the function of moving the water column, allowing greater exchange of gases between the aquarium water and the atmosphere. These gases are (mainly) oxygen, nitrogen, and carbon dioxide. Thus, preventing the formation of stagnant areas and facilitating gas exchange with the external environment. The air pump is a kind of pump, that generates a flow of air bubbles through a tube, causing the water in the aquarium to move to the surface. The best place to position the mechanical part of the pump is above the surface of the aquarium water level, due to safety in case of malfunction. The pump itself (the mechanical part) is placed outside the aquarium, the part that is submerged is the tube and whatever is fitted in its outlet (porous stone, sponge filter, etc.). A question that may come to your mind is, where should an aquarium air pump be placed? Aquarium air pump, if you have got them for the first or even if you already have it.
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