pool pump humming but not working

Low Flow?  No Pump?  No Problem!  Shock Your Pool with These Methods

For reasons of both health and fun, maintaining a spotless pool is an absolute must. Regular shock treatments are essential to keeping your pool clean. The accumulation of bacteria, algae, and other impurities in a pool necessitates periodic “shocking,” or the addition of significant quantities of chlorine or other chemicals to the water. What, though, if no pump is available or if it is not functioning properly? Does the pool still require shocking? Find out if it’s possible, and how to do it safely, to shock a pool without turning on the pump.

What Happens When You Shock a Pool?

To better understand how to shock a pool without a pump, let’s first examine the results of shocking a pool. There is a chemical reaction that gets rid of bacteria, algae, and other impurities in the water when a lot of chlorine or other chemicals are added to it. Shocking the water in a pool is an effective way to maintain its cleanliness, clarity, and safety for swimmers.

Calcium hypochlorite, sodium hypochlorite, and potassium monopersulfate are all viable options for shocking a pool. There is a specific function for each of these substances in the stunning procedure. Calcium hypochlorite, for instance, dissolves rapidly and is effective against germs and algae. Sodium hypochlorite is a kind of liquid chlorine that can be used to help maintain desirable water quality. Potassium monopersulfate is used as a non-chlorine shock to oxidize water pollutants.

Can You Shock a Pool Without Running the Pump?

Shocking a pool without the pump on is not recommended. The pump aids in the circulation of water and the dispersal of chemicals throughout your pool, making it an integral part of your filtration system. If you shock your pool without turning on the pump, the chemicals may not be able to circulate evenly, leading to insufficient treatment. It can also cause expensive repairs to your pool’s filtration system.

How to Shock a Pool with Low Flow or Without a Pump

Even if you have limited flow or no pump, you can still shock your pool, but you’ll need to take extra care to avoid harm.

Method 1: Use a submersible pump to shock the pool without the pump.

A proficient technique to electrify your swimming pool without the customary pump running is by utilizing a submersible pump. A submersible pump, which is essentially a portable pump, can be embedded in the water to initiate circulation. To carry out this process, adhere to the subsequent steps:

  1. Begin by procuring an adequate amount of shock for your pool and filling a bucket with it.
  2. Following that, activate the submersible pump and place it in the pool.
  3. Next, promptly discharge the shock near the submersible pump.
  4. Allow the submersible pump to disperse the water for no less than two hours.
  5. After the stipulated time has elapsed, deactivate the submersible pump and allow the pool to remain stagnant for the ensuing 24 hours.
  6. Subsequently, evaluate the water to ensure that the pH and chlorine levels have reached a state of equilibrium.

Method 2: Shock the pool with a pool vacuum without a pump.

An additional mode of revitalizing your swimming pool without a running pump is by utilizing a pool vacuum. By attaching the pool vacuum to either the skimmer or the vacuum port, it can effectively disperse the chemicals uniformly, thus facilitating water circulation. Here’s how to execute this procedure:

  1. Commence by obtaining the required amount of shock for your pool and depositing it in a bucket.
  2. Subsequently, fasten the pool vacuum to the skimmer or vacuum port.
  3. Pour the shock near the pool vacuum into the pool.
  4. Activate the pool vacuum and permit it to diffuse the water for a minimum of two hours.
  5. Cease the pool’s vacuum operation and leave the pool stagnant for the subsequent 24 hours.
  6. Evaluate the water to guarantee that the pH and chlorine levels are stabilized.

Method 3: Brush the walls and floor of the pool without the pump.

In the absence of a pump or a pool vacuum, one can still effectively shock their pool by brushing the walls and floor. By scrubbing the pool’s walls and floor, the water is coerced into circulation, which leads to an even distribution of chemicals. Here’s how to carry out this process:

  1. Commence by procuring the necessary amount of shock for your pool and transferring it into a bucket.
  2. Employ a pool brush to scrub the walls and floor of the pool vigorously.
  3. Dispense the shock into the pool close to the area you just brushed.
  4. Carry on brushing the walls and floor for a minimum of two hours.
  5. Leave the pool to be stagnant for the subsequent 24 hours.
  6. Assess the water to ensure that the pH and chlorine levels are in a state of equilibrium.


How frequently should my pool be shocked?
A pool should be shocked at least once per week, or more frequently if necessary, depending on usage and water quality. For detailed advice, seek professional advice or consult the instructions provided by the manufacturer of your pool.

How can I determine whether my pool needs to be shocked?
Your pool may require shocking if the water is hazy, smells strongly of chlorine, or has a lot of pollutants like bacteria or algae. The pH and chlorine levels in the water can also be tested with a pool test kit.

Can I swim in my pool now that it’s been shocked?
A shocked pool shouldn’t be used for swimming for at least 8 hours or until the chlorine level is within safe limits. For precise waiting times, refer to your shock treatment instructions or seek expert advice.

What safety measures ought I to follow when shocking my pool?
When shocking your pool, always put on safety gear like gloves and goggles and carefully adhere to the shock treatment’s recommendations. Never mix various chemicals together and keep them away from children and pets.

Do I have to shock my pool at night or during the day?
You can shock your pool at any time of day, although it is advised to do so in the late afternoon or early evening when the sun is not as intense because it can reduce the treatment’s efficacy.

Can pool shock make you sick?

Pool shock is a necessary chemical treatment used to keep the pool clean and safe for swimmers. However, if the shock treatment is not done properly, it can be harmful to swimmers. Exposure to high levels of chlorine can cause skin irritation, eye irritation, and respiratory problems.

To prevent these issues, it is important to use the correct amount of shock treatment and follow the instructions carefully. Never mix different chemicals together, as they can create dangerous fumes. Wear protective gear, such as gloves and goggles, when handling pool chemicals.

It is also important to test the water using a pool test kit to ensure that the chlorine level is safe for swimming. If the level is too high, it can cause skin irritation, eye irritation, and respiratory problems. If you experience any of these symptoms after swimming in a pool, seek medical attention immediately.

How Long After Shocking a Pool Can You Swim?

Prior to swimming in the pool after it has been shocked, it is advised to wait at least 8 hours. The length of the waiting period, however, may change based on the pool size and the type of shock therapy applied. Reading the shock treatment instructions attentively and adhering to the advised waiting period are both very important.

If the pool is bigger or the shock treatment is more powerful, some shock treatments could need longer waiting times. In order to make sure the chlorine level is safe for swimming before entering the pool, it’s also crucial to test the water with a pool test kit.


In conclusion, shocking your pool is crucial for keeping it clean and safe for swimmers. Although it is recommended that you operate the pump while shocking your pool, there are other options if your flow rate is poor or you don’t have a pump. You must take care to do this in a safe and efficient manner. Shock your pool without a pump by utilizing a submersible pump, a pool vacuum, or scrubbing the walls and floor.

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