Yes, Water should be replaced to normal operating level ,Which would be halfway up the opening of your Skimmers. Normally Center of tile line On 6 Inch tile bands or 3" below the bottom of your Coping.
My Hayward sand filter doesn't have a liner. I just add the sand to the pressure vessel.
You can add water, and make it run through an filter. The sand will stick in the filter, and the sugar will be yours after the water is vaporized. You can wait until the water is vaporized, or heat it up.
Add water, and the sugar will dissolve leaving the sand as a solid. Filter that mixture and the sand will stay on the filter paper and the water and sugar will pass through. Evaporate the water, and you'll be left with sugar only.
Add water and warm to dissolve the salt. Filter the whole solution to leave the sand. Rinse the sand and filter again. Evaporate the water off the salt solution.
Add more water until all the salt dissolves. Filter this mixture. The sand will be on the filter. Dry this out and sand will be left. Take the salt water and evaporate the water off and dry salt will be left. Condense the water from the evaporation and water is recovered too.
I would let the sand settle out of the mixture, then pour off the water, leaving the sand behind. If you needed to extract the remainder of the water, put the wet sand into a centrifuge and spin it until the water is out and collected from the centrifuge.If you want to separate sand from water take a beaker a pebble and a filter paper then fix the filter paper in the pebble and put it on the beaker and add the mixture of water and sand then the water will be in the beaker and the sand will be on filter paper. Remember use Steve for thick things such as tiny stones etc and apply the same method.
Very carefully! Make sure the laterals are in good condition and tight. If the filter has a verical return tube cover it to prevent sand from entering. Make sure this tube remains in the center of the opening. Add water to the empty filter until it is half full. This helps protect the laterals from being damaged by the addition of the sand and helps to distribute the sand evenly. Slowly add the correct amout of sand to the filter. There should be a label on the side of the filter that specifies the type of sand and the amount required. After the correct amount of sand is in the filter remove the cover from the return tube. Re-assemble the filter. Move the valve to "backwash" position to finish filling the filter with water. Backwash until water in the sight glass is clear.
Add water and stirr: salt is soluble, sand not. Filter the solution. On the filter re- main sand, in the solution salt. After repetitive evaporations you can obtain salt as crystals.
Simply,just get a filter paper add this mixture and as sand is insoluble in water it will be collected in the filter paper as a residue (it will not pass).However the water will pass as a filtrate so we can now take these two separately
first, add water to the mixture, barium chloride is soluble in water. then filter through and funnel and filter funnel. then add sodium sulphate, using the stove they will expand and separate. ( sodium cloride, and sand
Because sand is a solid and will be retained by the filter, whereas water is a liquid which will pass through the filter. The sand is not soluble in the water so it will remain a solid, rather than dissolving.
The sand has to be scooped out or can be shop wet vaced out. Replace with #20 silica sand only but first add water to the filter tank to about half way and cover the stand pipe in the middle of the filter so the sand will not spill into it. k