The recirc cycle bypasses the tank - could be the media is severly backed up/dirty...
Liquid or molten rock is called magma when it is below the ground and lava when it flows above the ground.
Magma is called lava once it erupts above ground. Lava is molten rock that flows from a volcano during an eruption.
A recirculation pump diagram shows how water is circulated in a system. It typically includes a pump, pipes, and valves to illustrate how water flows continuously.
Scientists refer to above ground freshwater environments as lotic systems, which include rivers, streams, and creeks where water flows in one direction. These environments are dynamic and important habitats for various organisms.
Water flows on the ground by following the path of least resistance, typically downhill or towards lower elevations. Factors such as gravity, slope, and surface material influence the direction and speed of water flow. In urban areas, drains and man-made channels can also guide the flow of water.
That is known as surface water. It can flow through rivers, streams, lakes, or other bodies of water above the ground.
Runoff
magma is molten rock that is still underground and lava is molten rock that is above ground
Potential energy is the energy referred to when water flows due to gravitational forces. This is because the water possesses stored energy due to its position at a certain height above the ground, which is then converted into kinetic energy as it flows downhill.
Water that flows over the ground rather than soaking into the ground is called surface water. This can include streams, rivers, and runoff from precipitation.
Lava flows can be stopped or deflected by ridges, valleys and depressions in the ground.
some of it gets soaked into the ground or flows through rocks and some of flows to the nearest body of water