You usually have to turn the multiport valve 180 degrees. Rotate your filter valve until it reaches the BACKWASH setting and locks it in place. Step 2: Set the Filter Valve Handle to Backwash Setting You will also need to turn OFF the sweep booster. Open your equipment panel and turn the filter OFF. You first need to attach the backwash hose to the backwash port like in the previous backwash process. This backwash process is also for multiport valve pool owners: Step 1: Turn off the Pump How to Backwash Your Pool: Sand Filter Version Now for the sand filter pool owners… Automatic electric filter engine for swimming pool in the backyard. You now have a clean and normal operating filter pressure! If you don’t see any DE going back into the water, then congratulations, you did well! You’re all done! Now all that’s left is to observe.Ĭheck the water flowing into the pool. Mix it with your hands (wearing your gloves!) until the consistency is similar to oatmeal.Īfter mixing the DE, pour it SLOWLY into the skimmer while the filter system is running so that it can coat the grids. Now, take the SAME AMOUNT of water as your DE and mix it in your bucket. Next, using your scoop, take the appropriate amount of DE powder and put it in the bucket. ![]() Bucket large enough to mix the diatomaceous earth in.Turn the filter valve ON again, and then it’s time to recharge it with a DE pool filter! Step 6: Refill the DE Pool Filter You’re done cleaning the filter system, and you can return it to the normal FILTER mode again. When you’re sure it’s all clean, it’s time to turn OFF the pump again. You need to repeat the backwash-rinse process a few more times to get all that stubborn DE powder out.ĭo this until the water in the sight glass is CLEAR. Just because you got rid of the cloudy water the first time doesn’t mean it’s enough. If you skip it and go straight to the FILTER after the backwash, you will send the remaining dirty water in the backwash hose back into the pool. ![]() This rinsing process is VERY IMPORTANT in cleaning the pool filter. The rinse setting will let the pool water pass through the filter’s regular flow while exiting through the waste line. Now, turn the filter system OFF and move the multiport valve over to the RINSE setting. If you have a sight glass, you can monitor the water status. There’s no set time for how long you should let the pool pump run, so let the cloudy water come out until ALL the DE is gone and the water comes out clean. The water will now come out of the backwash hose, and you’ll see the dirty DE water come out. This will reverse the water flow in the filter to clean the filter grids. Next, turn the pool pump in REVERSE, then turn it ON. ![]() Push the handle locks down and rotate the backwash valve clockwise. Never move your multiport valve before turning off your system! Then you can move your multiport valve over to the BACKWASH position. ![]() Now, turn OFF the pool pump and put it on FILTER mode. Then extend it until you reach a place where you won’t accidentally take a shower while cleaning. Take your waste line and connect it to the filter’s waste port. Here’s how to backwash using a multiport valve: Step 1: Connect the Backwash Hose to the Filter’s Backwash Port How to Backwash Pool Filter: DE Filter Version Your DE powder will come with instructions, so take that recommended amount and only use 80% of what is indicated (most recommended amounts tend to be too much). Use this to calculate the recommended amount of DE powder needed. This means there are 80 square feet in the filter system. If you look at the tank, there’s a label that says DEP and a number, like DEP80. How Much DE Powder Will You Need?įirst, you need to find out the size of your DE filter tank. It will show you your clean and dirty pressure and check if your pressure gauge says your water is 10 psi above the clean pressure. You usually need to clean out your de filter system when it’s higher than 10-pound force per square inch (psi). When Do You Need to Backwash Your DE Pool Filter?
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