How to Drain an Inground Pool below the Skimmer 2021 – Guide

By Harry ! Last Updated: March 01, 2021

Step by Step Guide On How to Drain an Inground Pool below the Skimmer

Owning a pool is every homeowner’s dream due to the several perks involved. You can quickly take a rejuvenating swim if you are feeling tired and bored. However, note that having a pool also comes with several responsibilities.

There is a lot of maintenance and cost associated with owning a pool. Let’s not forget the strict hygiene guidelines that you need to follow. However, the biggest problem with Inground pools is draining. Most people aren’t entirely sure when and how to drain their inground pool.

Today I will walk you through how to drain an inground pool below the skimmer. Note that we will also take a comprehensive look at when and why you need to drain your inground pool. Let’s get started on this transformative journey.

Draining an Inground Pool Below the Skimmer

It can be quite dangerous to drain your pool when you are a beginner. Note that pol draining is not an everyday task since it is quite risky. The good news, however, is that you will slowly get accustomed to inground pool draining after a few tries.

Most people tend to believe that the best solution for a dirty pool is draining. However, this is not always the case, and draining an inground pool should never be your first solution. Even if your pool looks trashy, you need to find different solutions to help you remedy the situation.

Several ways can help you clean your pool effectively and efficiently. However, if you think that draining the pool is the only viable solution, it would be best if you contact a professional pool company. As stated earlier, the process is dangerous if you are inexperienced. For this reason, let us take a look at when and why you need to drain your inground pool.

Why and When to Drain an Inground Pool

A few maintenance scenarios will need you to completely drain your pool. When conducting repairs, for example, you will find it necessary to drain all the water. However, hiring experts will make the work easier and faster.

After a few years of use, you will notice mineral stains on the pool walls. This is usually an indication that the level of toxicity is rather high. Most experts would only recommend partial draining in such circumstances.

However, the imbalance can be too high for a partial draining. In some scenarios, you will have to start all over. A professional will recommend that you drain the entire pool and refill it to give you a fresh start.

If you find yourself in such a situation, the best solution is to hire a professional pool company. However, sometimes you might need to complete the project by yourself to save some cash. If you are in such a situation, then the following information will come in handy.

Step by Step Guide on Draining an Inground Pool

Step by Step Guide on Draining an Inground Pool

Step 1

Let us first start by clarifying that this will not be a one-day job. You need to set aside at least three days for this task. Free up your entire weekend once you check the weather forecast. Ensure you find an entire weekend with plenty of sunshine and clear skies.

Most people make the mistake of assuming that inground pool draining takes a couple of hours. The process might seem simple on paper, but it is much more technical than you think. Sometimes, the entire process might take four to five days depending on the size of your pool.

Step 2

Examine the working of your pool to help you determine what triggers what. Ensure you look at all the fixtures including the suction lines and return valve. Understand that all the different fixtures have different jobs that will impact the pool draining process. Identify each valve and turn them on or off at the designated times.

In this article, I will walk you through when to turn the different valves on and off. I will also explain the function of each valve to give you a better understanding of how your inground pool works. Well, it's time for step number three.

Step 3

Turn off any additional pool water fixtures such as spray jets and fountains. The goal of the entire process is to ensure that all water goes out and no water comes in. Keep your returns line open if you are using a garden hose. Doing this will help you avoid any complications during the entire process.

Step 4

Ensure your waste line is open during the entire process. However, before you open up your waste line, there are a few things that you need to check. If you have a sand filter system, ensure the port valve is attached to the waterline and set on waste.

Understand that you are removing water from your pool. You must, therefore, ensure that the proper channels for getting the water out are put in place. It would help if you double-checked where the water is going before you start draining. Note that there are a few regulations on dumping pool water waste.

Lower the GPM rate of your pump to avoid water backup. Use the ball valve to control the flow rate by setting it to half. Once you have all this figured out, you can proceed to connect your waste line. Notice that your inground pool will start draining appropriately.

What is the Skimmer?

Most people don’t understand what we mean by the term skimmer. Put in simple terms, a skimmer is a vital pool element that works as suction which draws in dirt and debris. Note that the skimmer will draw in all the dirt and debris before they get to the bottom of the pool.

Understand that there are different skimmer types depending on the type of pool. You will come across different varieties including generic designs and high-end floating robotic models. All skimmers, however, work to keep your pool surface clear and clean.

Inground pools typically have in-built skimmers that are installed in the upper section. You will see a pipe underneath the skimmer that is used to create a suction whenever the best pool pump is functioning. When draining your inground pool, the suction will create a little bit of a problem because of the reduced water level.

Due to the lack of debris and water, the air gets sucked into the pipe and can lead to substantial damage to the pump motor. The trick is to turn off the suction line that leads to the skimmer once the water level is about 6 inches below the opening. Note that the skimmer suction line is the only thing that needs to be shut off once you get to this point.

Step 5

If you notice a significant drop in the amount of water flowing from your pol, then you might be experiencing a clogged drain. If your main drain is clogged for any reason, ensure you use a submersible pump to remedy the situation.

However, you could always rent a submersible pump if you don’t have one. The good news is that you will need it for a day or two. Ensure you constantly check where the water is going throughout the draining process.


Draining your inground pool will either be a difficult task or a piece of cake depending on how good you are at following instructions. Use the guideline above to effectively drain your inground pool below the skimmer.

1 Comment

  1. Erotik

    Hello, always i used to check webpage posts here in the early hours in the daylight, since i like to learn more and more. Pen Gabriello Affer Diann Gail Inglebert

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