How To: Replace the Sand in a Sand Filter

hello welcome Daniel pools how2guide section this video we're going to show you how to replace the sand in a sand filter every five to seven years you will have to replace the sand in your sand filter the sand actually wears out the sharp edges of the sand particles become more and round it and don't capture the contaminants as well also the sand will start to ball up or the water will create channels through the sand you will notice that your pool water is not as clean or the interval between required back washes is shorter this guide shows you the steps required to replace the sand in a sand filter example we are using is the Pentair trident two side valve sand filter before you start to change the sand in your filter be sure to purchase any material or equipment you will need editor this might include sand the o-ring between the valve and the tank teflon tape and lubricant for the sand use only high-rate number 20 silica sand check the manufacturer to determine the amount required in this example we use the Pentair trident 2 TR 60 which uses 750 pound bags of sand or 350 pounds total you can also purchase our superior to sand alternatives before you start to change the sand make sure you turn off the pool pump for maximum safety turn off the power at the circuit breaker to the pump next you will have to relieve the pressure that builds up in the filter during operation to relieve pressure turn the relief valve on top of the filter counterclockwise water may spray out initially as you see the pressure on the pressure gauge go all the way down to zero psi remove the drain plug at the bottom of the filter tank by twisting it counterclockwise this step will drain the water out of the sand in the tank using the lid wrench provided with the original purchase of the filter twist the lid off the top of the filter twist counterclockwise with the lid off the top of the filter you will see the baffle and the air relief tube the baffle distributes the water from the pump over the top surface of the sand the air relief tube connects to the bottom of the tank and release any air that is caught in the top of the tank the top of the air relief tube is covered with a screen to prevent sand from clogging the tube remove this screen and clean it clean off the top of the tube and blow through it to make sure it is clear move the baffle away from the opening in the tank by pushing it aside horizontally you should be able to push it so that the tank opening is completely open for maximum access to the sail remove the old sand using a cup or small coffee can or a medium to high-powered if you are using a cup to clear the sand place a cloth on the edge of the tank opening to avoid fiberglass plungers dump the sand on a tarp for later disposal clear the sand down to the top of the laterals at the bottom of the tank when you get to the lateral be careful removing the sand around it under the laterals and they are somewhat fragile and can be broken easily clear all the sand away from the lateral so you can inspect them wash off the laterals and the bottom of the tank let the water drain out the drain port look at and feel each of the laterals to see that they are damaged if necessary remove the questionable laterals to replace them see our guide on how to replace laterals at the Pentair Trident to side valve sand filter once all the laterals have been checked and are in place check and lubricate the drain plugs oring then replace the filter or drain plug fill tank about halfway full of water to provide a cushion when the sand is poured in this will help protect the laterals to replace the sand place a bag on top of the filter and cut out a large corner at the bottom of the bag nearest the hole in the top of the filter tank push the baffle back until it is position in the center of the tank opening make sure the air vent tube is still connected through the baffle and the screen is attached securely at the end of the tube the screen should be positioned close to the top of the tank clean any sand or other debris out of the threads of the lid cover and tank check the cover oh right or cracks or splits replace it required and then lubricate it lightly with a silicone-based lubricant screw the cover lid on top of the filter tape make sure the threads line up if it becomes hard to turn back the lid off and rethread it rotate the multi-port handle to backwash turn on the power to the pump and let it run in backwash mode for two to three minutes when a steady stream of water shoots out of the relief valve turn the valve off shut off power to the pump rotate the multi-port valve handle to rinse turn on the pump and operate a rinse mode for 30 seconds turn the pump off rotate the multi-port valve handle to filter turn pump on your filter should be operational note the filter pressure when it goes 10 PS a higher backwash the filter don't forget to check us out online at www.fixez.com you

Channel: Inyo Pools

Views: 252,214

Rating: 4.5872235 out of 5

Keywords: how to, pools, sand filter, pentair

Id: 77MI85auRQ8

Length: 7min 52sec (472 seconds)

Published: Tue Aug 26 2014