Water is meeting more resistance as it is making its way through the filter media usually indicating that the filter needs to be cleaned. Some times in the case of sand filters it indicate that the sand needs to be replaced.
when the pressure is high on filter mode it usually means that a backwash is required.
because the leak releases pressure?
No you only backwash your pool when your filter pressure on your filter is high 30psi and above on most pools. If you backwash your pool be sure to add two scoops of de to your skimmer. If the presure is still high the u need to clean the filter
Back wash valve when the pressure before the filter becomes to high usually indicated in red on the gauge the filter needs to be back washed.
Usually the pressure gauge on your pool equipment indicates how much pressure there is before the filter. as the pressure goes up it indicates that the filter is getting blocked and needs a backwash or cleaning. while the pressure is low the filter does not need cleaning.
The cleaning schedules varies from filter to filter, but a general guideline on any swimming pool filter is to take a reading when the filter is clean, then clean the pool filter when the pressure rises about 10 psi.
No absolutely not unless you want to waste a lot of water you backwash a pool when the pressure in front of the filter becomes too high or goes into the red.
The pressure gauge that is set up in front of the pool filter is there to show you when the filter needs cleaning or back washing. when the pressure gets high it indicates that there is too much dirt there for the water to pass efficiently, Cleaning it at this point will reduce the pressure and make the water flow better through the filter
Clean the Filter!
I suppose. Was that the pressure when the filter was new of very clean? No 2 filters will be exactly the same.
You can not measure the pressure in a swimming pool. If you mean the pressure on the filter tank gage then you may have to backwash the filter. Talk to your local pool store for instructions as how to maintain a swimming pool and the equipment. Get some education on swimming pool maint. before you get into some real trouble. A pool is not too forgiving for someone without a basic knowledge of pools.
As the filter gets clogged it restricts the flow of water and the pressure in the return line drops. The pressure gauge on the filter itself indicates the entry pressure and that will go higher as the filter becomes clogged. Don't ever allow the pressure to reach 40 PSI. Back-washing the filter should restore the pressures. Pool Masters