A pool filter needs to work well for it to yield good results.
The water is going to be filled with debris and/or particles that need to be filtered. If the pool filter does not filter properly, it is possible to end up with unclean water that continues to worsen with time.
This is why you have to figure out why the pool filter is not filtering fine particles.
If the pool filter is not filtering fine particles, this means the pool filter is either clogged, obstructed, or damaged. It is also possible for the valve to be damaged. If the pool filter is fine, add a clarifier to the water to clean it.
This is something you will need to do methodically to understand the root cause of what’s going on with the pool filter.
Some filters are not in good shape, which means they start showing signs of aging. While others are going to be dealing with a clogged component that has to be fixed.
This guide will look at all potential reasons why the pool filter is not filtering fine particles.
Table of Contents
How To Fix Pool Filter Not Filtering Fine Particles
1. Check For Clogging In The Filter
When the pool filter does not filter properly, you will need to start with the basics.
It’s common for the main issue to have to do with a clog in the filter.
This will cause it to not push water through and to stop filtering thoroughly. It is important to get to the bottom of this right away or the pool water is going to get worse with time.
You will need to inspect where the clog is and how you can remove it from the filter. It will depend on its location to ensure you can dig the debris out.
Look to take your time working on a clogged pool filter as it will need to be in working condition for it to get back to how it needs to be.

2. Check For Obstructions
You will need to also look for obstructions in the pool filter.
If you assess the pool filter, you will realize it is not in good shape and it will only worsen because the obstruction is not going to let the pool filter run.
You will need to dig into the pool filter to see what is happening with it.
In some cases, it might be an animal that has gotten too close to the pool filter and is not acting as an obstruction. This is why you should always do a detailed inspection at different times of the year to see whether or not the pool filter is unobstructed.
This will save you a lot of time before turning the pool filter on and then ruining it due to the obstruction.
3. Inspect The Valve For Damage
You will want to take the time to look at the valve.
The valve is going to be located near the pool filter and has to be assessed for damage. If the valve is damaged, this is going to be the reason for the pool filter not functioning as required.
The pool filter is not going to clean the water, which is going to cause it to get dirtier over time.
You will want to inspect the valve to see why it is damaged and whether or not it can be repaired. In some cases, you will need to replace the part to get it to work again.

4. Add Clarifier To The Pool
Let’s assume you have taken the time to look at the pool filter and it is in good shape.
This means it does not have a clogged area in it and it is not obstructed. If that is the case, it’s time to start working on the pool water.
You are going to do this by adding a clarifier to the pool.
This is going to help cleanse the pool water and make sure it gets back to how you want it to be. It’s essential to look into this when it comes to keeping the swimming pool clean.
Final Thoughts
These tips will help with a pool filter not filtering fine particles.
If a pool filter is not filtering fine particles, it’s essential to start by checking for clogging in the filter and/or obstructions nearby. Another concern can be a damaged valve that has to be replaced or repaired. If the filter is fine, add a clarifier to the pool water to clean it.
This is going to take a few steps and you will want to troubleshoot the problem in detail.
This includes inspecting the pool filter and figuring out what the root cause of the problem is. This is key when a pool filter starts malfunctioning or does not run properly.