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Showing posts from March, 2026

How to Size the Right Harmsco Pool Filter for Your Pool

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Picking the correct Harmsco pool filter size is essential because an undersized filter can’t handle the flow your pump pushes through it. When that happens, the filter can build up more internal pressure than it was designed to handle because it’s too small for the pump or the pool’s debris load. That extra strain can damage the filter tank, clamp, or even the pump itself over time. Here’s a simple way to size your filter properly if you’re considering a cartridge system from Harmsco . Know your pool size You need to calculate how much water your pool holds so you can choose the right Harmsco pool filter size. To do that, start by finding the pool’s average depth. No matter the shape, the method is the same: 1.     Measure the deepest point. 2.     Measure the shallowest point. 3.     Add the two numbers together. 4.     Divide by two to get the average depth. Example: Deep end = 12 ft Shallow end = 4 ft 12...

Cartridge vs. Sand vs. DE Filters: Which Is Best for Your Pool?

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  There are three main types of pool filters: sand, DE, and pool filters cartridge . All of them clean your water, but they work differently and have their own maintenance needs and costs. Understanding how each system works in real conditions helps you avoid long-term frustration and pick the filter that fits your lifestyle. Cartridge filters A pool filter cartridge uses a pleated polyester media inside plastic end caps to trap dirt and debris — no backwashing or added chemicals required. The pleated design creates a large filtration surface, with bigger units exceeding 300 square feet of media. When it’s time to clean, you simply remove the cartridge and rinse it with a garden hose. Here’s why you might like cartridge filters: ·      Capture a wide range of particles ·      No backwashing, so you save water ·      Easy removal and quick to clean ·      Handle body oils and lotions well,...