![]() ![]() DE needs to be changed frequently, especially when the water is very dirty.Very effective filtering of fine debris.But, there are some pluses and minuses to be aware of if you are considering a new DE filter for your swimming pool. They are almost ubiquitous on residential above-ground pools, and many inground designs also take advantage of DE’s filtering power. Pros and Cons of DE Pool FiltersĭE filters are pretty common. ![]() Once the DE is mixed with water in the skimmer, it is sucked into the filter tank, where it gets trapped on the fingers of the grids and starts filtering your water. You may even want to wear gloves, goggles, and a mask to avoid irritating your hands, eyes, and lungs. Doing so is a bit of a messy job, and it is inadvisable to inhale DE. Before you start filtering the water again, you must add a new dose of DE to the pool filter.Īdding DE is done by pouring some into the skimmer’s mouth the amount varies by model, but a typical ratio is approximately one pound of DE to every five square feet of filter grids. Unlike a sand filter, you still have some work after backwashing. ![]() When the DE accumulates too much fine debris, it’s time to backwash, just like a sand filter. The grids can often be agitated with a bump handle or other mechanism that basically shakes the DE around on the fingers and exposes fresh powder to the water, helping it last longer. The clean water then exits the filter tank via a valve and heads back to your pool. Once coated, dirty water is forced through the DE-coated grids, trapping debris. ![]() The grids have fingers that need to be coated with DE to filter the water properly. They are well-suited for filtering water and can capture extremely fine debris.ĭiagram: A) Upper manifold, B) Standpipe, C) Bulkheads, D) Pressure gauge, E) Air relief valve, F) Air relief tube, G) GridsĪ DE filter has a set of grids inside the hollow tank, held in place by a top and bottom manifold, pressure plates, and a gasket. DE particles are very porous because of the hollow nature of those organic structures. DE is a natural, fine powder composed of fossilized skeletons of tiny organisms called diatoms. Pool DE filters use a particular substance called Diatomaceous Earth to coat the grids within the tank and filter the water. What Are DE Filters, And How Do They Work? DE grids can last many years, but you may need to replace the grids every 10 years or so.At times, you may also need to remove the grids completely from the filter to rinse them out. To clean your DE filter, make sure you backwash regularly.DE filters are relatively inexpensive and is great at filtering out smaller debris, but it can require more maintenance than other filter types.DE filters use Diatomaceous Earth to filter the water.Here, I will cover the basics of a DE filter, including what they are, how they work, pros and cons, comparisons to other filter types, tips for cleaning, and more! But if you don’t know anything about this type of filter, it can be overwhelming to understand how it works, let alone how to look after it! Whether you are new to swimming pools in general or you’re thinking about switching to a DE filter, this guide is for you. DE filters can be used on both above ground and inground swimming pools, and they are relatively easy for a homeowner to work with, making them a popular choice for many pool owners. ![]()
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