There’s also a new video I posted on YouTube that shows the construction of a slow sand filter. The performance of a sand filter is determined by two sand filter functions, namely surface filtration and depth filtration. Surface filtration involves collecting the particles above the filter bed.
We’ve partnered with HomeAdvisor to help you find the best pool maintenance and cleaning services near you. Compare free quotes from fully vetted pool professionals. For more information on comparing these filter types, go to my full sand vs. DE vs. pattern filter comparison. Chlorine is a fairly corrosive substance, so it is always diluted with pool water before entering the pipe. Liquid chlorine should be poured around the edges of the pool while the pump is circulating. The PSI filter does not fall off, regardless of whether or not you have washed the sand.
That’s how old sand filter technology is, but don’t let that be a disadvantage. Some of the best inventions thought centuries ago are still used today. The filter system only works if water drips from top to bottom. If the water reaches the bottom of the container, it is caught by the sides or finger-shaped projections. These sides have small holes to allow only water to enter the pipe and return to the pool.
Changing the sand is not difficult, although it may take some time depending on the size of the container using the sand filter. Start by running a backwash and leave the pump off when you’re done. Start by loosening the bolts that hold the container together, alternating back and forth to avoid damaging the container with excessive stress on one side. Remove the top of the container, and then remove the sand in the filter container.
As water travels from the diffuser to the bottom of the filter, it is pressed through the sand filter medium, where dirt seeps out of the water. Sand filters become clogged with flakes or bio clogged after a period of use. The slow sand filters are then scraped, while the fast sand filters are washed countercurrent or pressure to remove the flake.
Hi Brian, what other problems can cause very dirty water, maybe even some sand? Fill in the form below to request a quote for our industrial water treatment services. The irregular edges of sand and media can be rounded for a long time and thus reduce the filtration capacity after a few years of use and need to be replaced.
Dirt and debris in the water are trapped by the sand and left behind, while the rest of the cleaner water returns to the pool. As more pool water passes through the sand filter system, more dirt and debris will accumulate the sand, making the filter more efficient as you clean. Sand filters use a tank, also called a housing or container, which contains the sand media. This medium is what your pool water goes through to filter out the “bad things” in the pool water. This can be dirt, debris, and even some debris that causes bacteria. You don’t just want to back up and load your truck to your local park.
Even when we counterwash, we lose pool water and chemicals. This can cost us money to get certain fields back in the acceptable range. As the name suggests, sand filters are filled with sand, often used for various industries. The sand of various particles is stored in a sand filter, and the bottom of the sand filter contains double porous bottom – collector. Sand is often found in a bowl made of mild steel, plastic or concrete. Sand filters have a big advantage over DE filters, although they work according to similar principles.
You will receive the exact instructions along with your specific sand filter. When the filter is turned on, pool water enters the container from above. As the water drips, the sharp edges of the sand trap debris and other particles. In some models, the access aquarium equipment point is located on the side, from where the water is directed upwards to begin filtration. A sand filter usually looks like an oversized oxygen cylinder. The device gets along well with the circulation system and helps to remove any residue from the water.