Mudballs in your filter, a blockage in the pressure side Plumbing. or a loose gate valve that closes? most likely mudballs in your filter. there are many different variables that can lead to mudballs in your filter. bascially though your sand turns in to a liquid concrete, and the water only passes through tunnels which the water have forced through. when you back wash, you are increasing the flow through the filter and the paths are cleared rapidly. over time, the disruption could cause a collapse again of those tunnels.. all in all, change your sand in your filter. or have a professional do it. I might be jumping the gun, but if it is a cartridge filter you have, they cannot be backwashed... the valving on those filters can be changed to "waste" to lower to pool water by , bypassing the filter completely. you have to remove those filters and chemically clean them everyso often. but in this case if it was a cartridge filter, i would replace the cartridge, they get to a point where even the chemicals can't clean them.
Dirty water jet streaming after backwashing could be caused by a clogged or malfunctioning backwash valve, an incorrect setting on the filter valve, or a high pressure in the system. It may also indicate a problem with the filter media or a need for additional filter maintenance.
The clogging of pores with dirt, bacteria, etc.
Yes, wind moves from high pressure to low pressure areas. When there is a high pressure center, wind will move rapidly towards it to balance the pressure gradient. This movement is what causes differences in pressure to equalize, creating wind.
flood can be cause by the clogging of grains and heavy rainfalls
lime, rust, sand, minerals,
Heating a can and then submerging it in water can create a pressure difference between the inside and outside of the can. When the can is rapidly cooled in water, the pressure difference causes the can to collapse due to the external pressure being greater than the internal pressure.
Atmospheric air can be rapidly heated by factors such as strong sunlight, combustion reactions from wildfires or industrial processes, or localized temperature inversions where hot air is trapped near the Earth's surface. This leads to an increase in temperature and can result in the formation of heatwaves or other extreme weather phenomena.
There are a few causes that lead to atmospheric air to be rapidly heated. Having a fire burning will lead to rapidly heated atmospheric air.
Eggs crack when boiling because the heat causes the air and moisture inside the egg to expand rapidly, creating pressure that can crack the shell.
causes of abnormal pressure
When a rubber ball is bounced, its molecular structure causes it to compress, but it cannot equalize the pressure by expanding on the other side, so the pent-up energy is rapidly used by decompressing the ball which causes the bounce.
The pressure outside of your eardrum in the plane changes as the plane goes up or comes down - this causes pain because the pressure behind your eardrum is either higher or lower than the pressure inside the plane.