How to Maintain, Clean, and Fix Your Pool Skimmer

A pool skimmer is an integral part of maintaining a clean and healthy swimming pool. There are two primary types: a handheld skimmer net, which attaches to a telescopic pole for manual debris removal, and a built-in skimmer that’s installed along the pool’s edge, working as the first line of defense for your pool’s circulation system.

This guide focuses on the built-in pool skimmer, detailing its function, cleaning process, and how to resolve common issues to ensure your pool remains in top condition.

What Are Pool Skimmers?

Pool skimmers resemble small collection boxes embedded in the pool’s walls, designed to capture leaves and debris before they reach the pump and filtration system. They typically have a rectangular opening near the waterline and house a skimmer basket that traps floating contaminants.

Most built-in skimmers are made from durable plastic and often feature a floating weir, a small flap that regulates water flow and prevents collected debris from escaping back into the pool.

Do You Need a Skimmer Weir?

While not essential, a skimmer weir is highly beneficial. It helps trap floating debris, preventing it from re-entering the pool when the pump is off. Additionally, it regulates the amount of water flowing into the skimmer, enhancing its efficiency. However, these weirs can be fragile and may need occasional replacement.

How Pool Skimmers Function

Pool skimmers act as the initial gateway for water circulation. The pool pump draws water through the skimmer, where the skimmer basket captures larger debris, such as leaves and twigs. This prevents clogging in the pump and filter while allowing finer particles to be removed by the filtration system.

By keeping your skimmer clean and functional, you reduce strain on your pool equipment and maintain optimal water clarity.

Skimmers Help Keep Your Pool Surface Clean

Swimmers introduce lotions, cosmetics, and other residues into the pool. You can enhance skimmer performance by using a fine mesh cover, such as a skimmer sock, over the basket to trap smaller contaminants before they reach the filtration system.

Using Skimmers for Chlorine Distribution

Instead of a floating chlorine dispenser, some pool owners place chlorine tablets directly in the skimmer basket. While this method works temporarily, it can damage your pump and filter due to high chlorine concentrations. A better alternative is installing an automatic chlorinator, which provides controlled chlorine distribution without harming your equipment.

When and How to Clean Your Pool Skimmer

For optimal performance, clean your skimmer basket at least once a week, or more frequently if your pool is exposed to high debris levels due to nearby trees, windy conditions, or storms.

To clean your skimmer:

• Remove the skimmer lid.
• Take out the basket and dispose of any debris.
• Rinse the basket if necessary.
• Replace the basket and lid.

Clearing a Clogged Skimmer Line

If your pool pump experiences low suction or fluctuating pressure, your skimmer line may be clogged. Follow these steps to diagnose and fix the issue:

1. Check the Pump and Skimmer Basket – Ensure they are free of debris and the pool water level is adequate.
2. Adjust the Diverter Valve – Alternating between different suction lines may dislodge obstructions.
3. Use a Drain Cleaning Bladder – Attach it to a garden hose, insert it into the skimmer suction port, and apply water pressure to push out blockages.

If these methods don’t resolve the issue, professional assistance may be required.

Winterizing Your Pool Skimmer

Before closing your pool for the winter, take steps to protect the skimmer. For inground pools, insert a rubber plug or an ice compensator like a Gizzmo to prevent water from freezing inside. Above-ground pools may require a skimmer cover to keep debris out.

Frequently Asked Questions

• Is a skimmer necessary for all pools? Most pools require a skimmer to remove debris and prevent pump damage. Small inflatable pools may not have built-in skimmers.
• How often should I clean my skimmer? At least once a week, or more frequently in high-debris conditions.
• Can I add pool shock to the skimmer? No. Adding shock to the skimmer can cause dangerous chemical reactions if mixed with chlorine tablets.
• Are skimmers located at the bottom of the pool? No. Skimmers are installed at the waterline, while main drains at the bottom help with circulation.

By keeping your pool skimmer well-maintained, you ensure a cleaner pool and prolong the life of your filtration system.