Dealing with a Cracked Pool Filter Housing: Steps to Diagnose and Repair

Dealing with a Cracked Pool Filter Housing: Steps to Diagnose and Repair

A cracked pool filter housing can be a frustrating issue for any pool owner. Not only can it cause water leakage, but it can also reduce the efficiency of your pool’s filtration system. In this article, we will guide you through the steps to diagnose, repair, or replace a cracked pool filter housing, so you can get your pool back up and running as soon as possible.

  1. Diagnose the Problem

Before taking any action, it’s essential to confirm that the pool filter housing is indeed cracked. The signs of a cracked housing may include:

  • Visible cracks or damage to the housing
  • Unexplained water loss or leaks around the filter area
  • Reduced water pressure and filtration efficiency

Make sure to turn off your pool pump and filter system before inspecting the housing to avoid any injuries or further damage.

  1. Assess the Severity of the Crack

Once you’ve identified the crack, assess its severity to determine the best course of action. Small, hairline cracks may be repairable with a sealant or epoxy, while larger cracks or extensive damage may require a complete replacement of the housing.

  1. Repairing a Minor Crack

If the crack is minor and doesn’t compromise the structural integrity of the housing, you may be able to repair it using a pool-specific sealant or epoxy. Follow these steps:

  • Thoroughly clean the area around the crack, ensuring it’s free from dirt, algae, or debris.
  • Apply the sealant or epoxy according to the manufacturer’s instructions, making sure to completely cover the crack.
  • Allow the sealant or epoxy to cure for the recommended time before reassembling the filter and restarting the pool pump.
  1. Replacing the Filter Housing

If the crack is too severe for a simple repair, you’ll need to replace the entire filter housing. Here’s how:

  • Turn off the pool pump and filter system, and disconnect any electrical connections.
  • Consult your pool filter’s user manual to determine the correct replacement housing for your specific model.
  • Remove the existing housing according to the manufacturer’s instructions, taking care to avoid damage to any connecting pipes or components.
  • Install the new housing, ensuring a proper seal and alignment with the rest of the filter system.
  • Reconnect any electrical connections, and restart the pool pump to check for any leaks or issues.
  1. Preventing Future Cracks

To prevent future cracks or damage to your pool filter housing, follow these tips:

  • Maintain proper water chemistry, as unbalanced water can cause corrosion and damage to pool equipment.
  • Regularly clean and backwash your filter to prevent excessive pressure build-up that can stress the housing.
  • Inspect your pool equipment regularly for any signs of wear, damage, or leaks, and address issues promptly.


Dealing with a cracked pool filter housing can be a challenging task, but with the right approach, you can quickly diagnose and resolve the issue. By regularly inspecting and maintaining your pool equipment, you can help prevent future problems and keep your pool in optimal condition all season long.