Unlike high pressure there is no normal range for low pressure.
Low water pressure pool filter.
Eyeball fittings not in place at pool returns.
You should never operate a pool system above 30 psi and anything above this pressure should be regarded as dangerous.
Low pressure in your filter is much less dangerous than high pressure but it means your filter isn t doing its job.
A low or high psi reading is anything outside the normal operating pressure of the filter.
If the issue was in fact a clogged filter you should have no water flow problems now.
If your pressure gauge is showing a high reading and your pool is showing symptoms of low water flow here are some of the probable causes.
Low pressure is caused by an obstruction or other problem that is keeping water from reaching the pump.
Have owner get a filter replacement cleaning.
That s because after the pump the water is under pressure so any problems would produce high pressure not low.
Filter valve allowing water to bypass filter.
Here s a list of common causes of low filter pressure.
Reduced water movement in the pool.
Pump not fully priming or there s air in the system when turned off.
Causes of low water flow due to high system pressure.
A dirty pool filter wins for most popular water flow issue on a heater service call.
If you neglect the skimmer filter and it gets clogged up the pressure in the water pump will drop.
Clogged pump basket or skimmer baskets.
High psi readings will also cause low water pressure.
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.
Pool filters and most pool equipment is designed to operate normally up to 30 psi.
Low pressure will almost always be caused by a problem at or before the pump.
This can be diagnosed by removing the filter and running pump again without filter in.
Clogged filter if water can t get through a clogged filter you will have less water flowing out of the filter.