what are laterals in a pool filter


Author: PoolKing - Pool Sand Filter Manufacturers

What are Laterals in a Pool Filter?

If you're a pool owner, you're probably familiar with the concept of a pool filter. It's a crucial piece of equipment that helps keep your water clean and safe for swimming. But have you ever heard of laterals? If not, don't worry – you're not alone. In this article, we'll answer the question "what are laterals in a pool filter?" and explore their importance in maintaining a healthy pool.

Subheading 1: What is a Pool Filter?

Before we dive into the specifics of laterals, let's quickly review what a pool filter does. Simply put, a pool filter removes debris and contaminants from your pool water, preventing them from recirculating and potentially causing health problems or damaging your equipment. There are three main types of pool filters: sand, cartridge, and diatomaceous earth (DE).

Subheading 2: How Does a Pool Filter Work?

Each type of pool filter works a little differently, but the basic idea is the same: water is pumped from your pool into your filter, then flows through a medium (sand, fibers, or DE) that traps any debris, before returning the clean water back into your pool. A crucial aspect of this filtration process is the internal system of tubes and nozzles that allow water to flow through the filter media and back into the pool. And that's where laterals come in.

Subheading 3: What are Laterals?

Laterals are small, cylindrical tubes or pipes that sit at the bottom of a sand filter, and in some cases, a DE filter as well. They're typically made of plastic or PVC, and each one has small, slotted openings that allow water to flow through. The number of laterals in a filter depends on its size, but you can typically expect to find at least eight, all evenly spaced around the circumference of the filter.

Subheading 4: What is the Purpose of Laterals?

Without laterals, the sand or DE in your filter would simply sit at the bottom in a giant clump, preventing water from flowing through and negating the filtration process. Instead, laterals create a bed of sand or DE that allows water to flow through evenly, maximizing the filtering power and helping to prevent clogging.

Subheading 5: Maintaining Laterals

Like any piece of pool equipment, laterals need regular maintenance to ensure they're doing their job effectively. Over time, the tiny slots in laterals can become clogged with debris and minerals from your pool water. If you notice a decrease in water flow, it's likely due to clogged laterals. You can clean them by removing the filter, taking off the valve assembly, and rinsing the laterals with a hose. Alternatively, some pool owners opt to replace their laterals when they become too clogged.

Bottom Line

Laterals may be a small part of your pool filter, but they play a big role in making sure your water is clean and safe for swimming. By understanding what they are and how they work, you can better maintain your pool's filtration system and enjoy crystal-clear water all summer long.


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