How To Backwash Pool: A Step-by-Step Guide

How To Backwash Pool A Step by Step Guide

Preserving your pool properly is essential for maintaining clear, clean water. Backwashing, which involves switching the direction of water flow through the filter to remove dirt and debris, is one crucial component of maintenance.

We’ll walk you through backwashing your pool in this post, including when to do it, how to do it, and potential hazards. Any backyard would benefit from having a pool because it offers several hours of amusement and relaxation.

A pool, however, comes with the duty of maintaining it. Backwashing, which involves turning the water’s direction through the filter to remove dirt, debris, and other impurities, is a crucial part of pool maintenance. This procedure should be carried out on a regular basis to maintain the cleanliness and clarity of your pool’s water.

Preparing to Backwash

The first step in the procedure is determining when to backwash your pool. Some indications that it’s time to backwash include high filter gauge pressure, murky water, or a decrease in water flow. These are all signs that the filter needs to be cleaned because it is clogged.

Get all of the required items together before you start backwashing. This contains the filter itself, a pool pump, and a backwash hose. Before you begin the process, be sure you have everything you need.

The Backwashing Process

Although the actual backwashing procedure is rather straightforward, it’s crucial to carefully follow the instructions to make sure you’re doing it right. Here is a detailed instruction:

  • Deactivate the pool pump: To prevent any mishaps or injuries, turn off the pool pump before starting.
  • Find the multiport valve on the filter: A multiport valve that regulates water flow is found on the majority of pool filters. Depending on the type of filter you have, the location of this valve may differ; if in doubt, refer to the manufacturer’s instructions. The multiport valve’s handle is often turned to the “backwash” position in order to change the valve’s position.
  • Set the pool pump to on: Restart the pool pump with the valve in the proper position. This will start the water flowing through the filter in reverse. Give the procedure a few minutes to run its course. It could take anything from a few minutes to several minutes to finish the backwash, depending on the size of your pool. You’ll see that the backwash hose is now discharging unclean water at this time.
  • Reset the valve to “rinse” and shut off the pool pump: After the backwashing is finished, switch the valve to the “rinse” position and shut off the pool pump. By doing this, new water will be able to pass through the filter and rinse any leftover debris.
  • Restart the pool pump: Restart the pool pump with the valve in the “rinse” position. To make sure the water is clean, let it pass through the filter for about a minute.
  • Set the valve to “filter”: After the rinsing is finished, set the valve to “filter” to restore the water flow in the expected direction.

Maintaining the Pool After Backwashing

Although backwashing is an essential part of pool upkeep, you should be doing more than that to maintain your pool in great shape. Following backwashing, follow these procedures to keep your pool in good condition: routine water testing It’s crucial to monitor the chemical levels in your pool water to keep a healthy balance.

Regularly check the pH, chlorine, and alkalinity levels and make any adjustments. Watch the filter pressure indicator: When to backwash once again can be determined by the pressure gauge on your filter. If the pressure begins to increase, the filter is probably becoming clogged and has to be cleaned.

Wash the pump basket and skimmer basket: Both the pump basket and the skimmer basket are made to catch debris before it enters the filter. To avoid clogging, make sure to clean these baskets frequently. Brush the pool’s walls and floor since they may accumulate with algae and other impurities.

To remove these impurities and maintain clean water, use a brush. Pool vacuuming is a good way to get rid of dirt, debris, and other impurities that have fallen to the bottom of the pool. When should the pool be backwashed? The size and usage of the pool, the climate, and the kind of filter all affect how often backwashing is required. Generally speaking, you should backwash your pool every three to four weeks or whenever the pressure gauge registers an increase of 8 to 10 PSI.

Safety Considerations

Although backwashing your pool is a fairly straightforward procedure, it’s crucial to take safety precautions to prevent mishaps or injuries. Here are some things to remember: Before making any modifications to the filter or multiport valve, always turn off the pool pump.

Make sure the backwash hose is placed safely, away from any potential damage or flooding.
To protect yourself from any chemicals or debris in the water, put on the proper safety equipment, such as gloves and goggles. It’s best to get professional advice if you’re unclear on how to backwash your pool correctly or if you’re having issues.

Cost and Time Considerations

Although backwashing your pool is a somewhat cheap process, there are a few costs to consider. If you don’t already have a backwash hose and potentially other equipment, you’ll need to buy them.

You’ll also be responsible for paying for the electricity required to power the pool pump while it’s being backwashed.
The backwashing procedure itself normally lasts between 10 and 15 minutes. However, it can take longer if you’re simultaneously doing other maintenance duties, like vacuuming or brushing.


Maintaining clear, clean water in your pool requires regular backwashing. You can backwash your pool correctly and maintain it in peak shape by following the instructions provided in this article. Keep safety in mind, take your time, and get advice from a specialist if you’re unclear on how to proceed. You may quickly enjoy crystal-clear water with a small bit of work.