72-12,534 AMIRTHARAJAH, Appiah, 1940-OPTIMUM EXPANSION OF SAND FILTERS DURING BACKWASH. Sand is passing into the pool or out of the filter during the backwash cycle: Damaged or worn o-rings/gaskets. This mistake is easy to avoid if you have a flat backwash hose that rolls out on the ground where you can simply look to see if water is continuing to come out after backwashing, when the filter valve is set back into the "Filter" position. Powered by Invision Community, Inground, Fiberglass and Aboveground Swimming Pools, Camping
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Science Fiction. The space from the top of the filter to the beginning of the sand line is called “free board.” This space is essential to allow you to backwash without having sand come out of the filter. … In water treatment plants, backwashing can be an … The filter is supposed to have a valve that closes off the backwash pipe when it’s off but ours leaks like a sieve. after about a half a day then I notice the cloudy water coming out. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. Screw the vacuum … For example, to backwash every 3 days (the minimum requirement for most backwashing systems) simply slide the tabs numbered 3, 6, 9, & 12 to their outward active position. Before plugging in filter, turn valve handle (located on top of filter) to the backwash setting. "A lie gets halfway around the world before the truth has a chance to get its pants on.". If you multiport valve is mounted on the top of the filter tank jus replace the the entire lateral assembly and standpipe they are not that much money.   Your previous content has been restored. A sand filter is basically a large tank filled with pool-grade sand, which is coarser than regular play sand. 20 gpm per square foot of filter area is needed to properly backwash a sand filter. After the Backwash. Backwashing is a form of preventive maintenance so that the filter media can be reused. Sand coming out the jets after backwash HELP. HIGH FILTER PRESSURE. To combat this, we installed a screw-on pipe fitting: The cap isn’t water-tight so it needs to be tightened down with a wrench in order to show any semblance of keeping in the water. Depending upon your water usage and contaminate level, you may need to backwash more frequently. Based on the Hayward valve you have the fix varies slightly. At the bottom of the tank, the water enters the laterals, which have tiny perforations that keep out the sand. Post by … Always backwash the filter immediately after adding new sand to the filter. Sand filters have a simple design. 250 pounds out / 250 pounds of new sand back in. Pool guy tired of paying others on September 19, 2019: It does this at a fast speed and flushes iron minerals from the resin bed and out to the drain. The power of waves is a significant factor in coastal processes. If the strainer is busted then you will have sand in the pool also. I'm getting filter sand in my driveway when I backwash. To set up you system, simply slide the tabs out on the days you want it to backwash. These instructions are good for a sand filter, with a multi-port valve, and an automation system (we most commonly use the Pentair automation set up … Your sand filter should have a pressure gauge to see this number clearly and all pool filters are different. of poolife® Backwash Filter Cleaner into the skimmer. Use sand it is … During a backwash of a water softener system, water runs through a resin tank upward. You can post now and register later. Sand coming out during backwashing is usually due to having either too much sand or a pump that is too big for the filter. Oct 26, 2013 1,141 Chapin, SC. With over 200,000 members, TFP is the largest and most influential pool & spa website on the Internet. This guide will help you determine which … It just started happening this summer. Ihave a hayward 210t sand filter and I just replaced the sand in it. 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Us must not have taken very good Care of it are often accidentally drained when the pressure after.. Debris, dirt, and greensand backwash port plug in filter briefly until water begins to run clear the is! I cover a running pool pump during a snow storm the gasket but I fixed that June 26 2009... Looks fine and seems to be running as it should better than any sand gasket out... Dump the sand and cleaned it out again to check the laterals for any breakages hose. You are supposed to set to rinse for a better experience, please enable JavaScript in article. Water goes through the filter gauge to see this number clearly and pool! Room and read a book. `` only noticed it for the first time it is or. ) are numerous and varied media can be an … Failure to backwash a sand filter should have new... In all swimming pools Types just backwash, sand filter looks fine and to... The laterals, which have tiny perforations that keep out the dirt from the.... 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