Low pressure in your filter is much less dangerous than high pressure but it means your filter isn t doing its job.
Low water pressure pool filter.
If the issue was in fact a clogged filter you should have no water flow problems now.
Have owner get a filter replacement cleaning.
High psi readings will also cause low water pressure.
Reduced water movement in the pool.
Pool cleaner not moving around the pool well or may have stopped altogether.
A low or high psi reading is anything outside the normal operating pressure of the filter.
Here s a list of common causes of low filter pressure.
If you neglect the skimmer filter and it gets clogged up the pressure in the water pump will drop.
This can be diagnosed by removing the filter and running pump again without filter in.
Eyeball fittings not in place at pool returns.
The skimmer filter is like a basket that catches leaves grass and other small things that float on the surface of your pool.
Pump not fully priming or there s air in the system when turned off.
Also most pool equipment has a maximum pressure rating of 50 psi and the area between 30 and 50 is your safety margin as a pool owner.
Causes of low water flow due to high system pressure.
Clogged pump basket or skimmer baskets.
A dirty pool filter wins for most popular water flow issue on a heater service call.
You should never operate a pool system above 30 psi and anything above this pressure should be regarded as dangerous.
Filter valve allowing water to bypass filter.
Clogged filter if water can t get through a clogged filter you will have less water flowing out of the filter.
Unlike high pressure there is no normal range for low pressure.
Low pressure is caused by an obstruction or other problem that is keeping water from reaching the pump.
Low pressure will almost always be caused by a problem at or before the pump.
Low pressure is a pool term that is often used to describe weak jets as well as a low psi reading on the filter s pressure gauge.