There is a broken or worn out lateral in the bottom of the sand filter. You need to buy new laterals and put new sand in the filter.
Cleaning the filter will lower the back presure. or else a hole in a cartridge filter will also do it.
Cartridge is not installed correctly or you have a crack in the manifold allowing dirty water to pass by the filter.
You don't backwash a cartridge filter. To give them a quick cleaning you can take the cartridges out and hose them off to remove surface dirt and some algae. To give them a full cleaning you should get a pool cartridge degreaser and first clean them as above then soak them in the degreaser as per it's instructions.
Yes, the 3.6L filter is a cartridge.Yes, the 3.6L filter is a cartridge.
It is a paper cartridge filter.It is a paper cartridge filter.
A cartridge filter is inside an assembly as an element is its own assembly.
Cartridge and DE filters are the most prone to what is commonly referred to as "short cycling". This is when you clean the filter and the pressure goes back up right away. Over time, debris gets entrapped in the fabric cartridge element or DE grid material and it can not be removed by backwashing or cleaning. You can try a filter cleanser but it would be best if you replaced them.
Before I changed my filtration system al together I used to have a cartridge filter that as it turned out was not big enough to do the job properly, I ended up putting another filter in parallel to it and it totally fixed the problem and wasn't hard to do. It increased water flow and reduced the number of times the cartridge needed cleaning.
Whirlpool RY160LXT 30" Slide-in Electric Range, Frigidaire 30 in. Electric Self-Clean Coil Top Slide-In Range - FES355E, GE JS968 GE Profile? 30'' Slide-In Electric Range with Self Cleaning are some of most popular self cleaning ovens.
Replacement filter cartridges can vary in price depending on the filter that the cartridge is inserted to. In general, a replacement filter costs about 40 dollars.
You may have debris caught up in the impellers, the pump motor may be on its way out or if you have a cartridge filter the cartridge may be clogged with mineral deposits see if the pressure in front of the filter is always high if it is your pool shop will have the right gear for cleaning it out. A: Clean or back wash the filter and recharge with new D. E. as needed. Clean out or empty the skimmer and pump baskets. If it has been over 25 - 30 days since you last cleaned the filter either by back washing or hosing the cartridge elements then your filter is dirty. High pressure reading on the filter tank gauge is the first indication that the filter is dirty and needs cleaning. k
You can by a "filter cleaning" chemical at your pool store. It usually requires you to soak the filter in part water and part chemical for 12 hrs or so and then spray with hose. It works great on our hayward cartridge filter.