For each inch in diameter of your pool filter, pour in 25 pounds (1/2 a 50 lb bag) more sand. For example, a sand filter with an 18-inch (46 cm) diameter needs 150 pounds of sand while a filter with a 19-inch diameter (48 cm) needs 175 pounds of sand.
Most average sized Sand Pool Filters will need about 3 bags of sands. But if you can't figure out how much sand you need, just fill your tank until the sand reaches about 6 inches from the opening.
The unopened bag covers 1 1/2 square feet. If you spread it to 1 inch thick, it will cover about4 square feet. 50 pounds of sand is not a lot as it is heavy.
There are 54 50lb bags of stone or sand per cubic yard. 27 cubic feet equal 1 cubic yard (3'L x 3'W x 3'H). Soil weighs about 2,200 lbs per cubic yard.
Too little sand and you will have cloudy water no matter how much your filter runs. For this reason check your filter manufacturer's specs.
When do I need to replace my sand? On average, sand should be replaced every 3-5 years. This may be longer if the pool stays clear, or shorter, if the filter runs all the time. The jagged edges of the sand wear down and become smooth as the sand ages.
No matter what type of sand you use, it must be changed to keep the filter working properly to remove contaminants from pool water. A few signs can help you know that it's time to make the change: The sand has reached its maximum life span. The life span of pool sand is estimated to 3 to 5 years.
Each lateral is full of tiny perforations large enough to allow water to pass through the filter, but not sand. If, for some reason, one or more of the laterals crack, sand will easily pass through and be sent into your pool along with the clean water.
It is commonly recommended by above ground pool manufacturers to have a 2" sand base inside the pool, under the liner. This will help protect your liner, and provide a soft floor that provides comfort while walking in your pool. Always use masonry sand, which is a washed sand, free of rocks and debris.
It's important that when you're using your pool often, like during the summer, you run your filter at least 12 hours a day to clean out the dirt, grime, and other debris that gets in and out of the pool with your swimmers. Running your filter for 12 hours daily will help keep the water clear and the pool looking great.
For a sand filter, it will take a week or more. Cartridge filters will need to be cleaned more often than other filters during this process: twice a day for at least two days, or until the pool is clear.
Backwash the filter for at least two minutes or until the filter's sight glass is running clear. This helps get out all of the sand dust and extra debris from the new sand. Shut the pump off, set the multiport valve to rinse, and turn the pump back on. Rinse the filter for one minute.
Backwash the Filter
Once the backwash water runs clear and clean, turn the pool pump off. Switch the multiport valve to “Rinse,” then turn the pump back on. After about a minute, the water in the sight glass should be clear.
1 bag yields approximately 0.6 cu. ft. Will fill an area approximately 7 sq. ft.
Use the following scale to determine how many sandbags you need per linear foot of wall based on the height of the wall. A 1-foot wall needs five bags per foot, a 2-foot wall needs 10 bags per foot, a 3-foot wall needs 21 bags per foot, a 4-foot wall needs 36 bags per foot and a 5-foot wall needs 55 bags per foot.
A Bulk bag will typically cover 12 square metres with a 50mm thick layer. Used for laying slabs and block paving. A Bulk bag will typically cover 12 square metres with a 50mm thick layer.
5 gallon bucket = 70 pounds of dry clean play sand (80 to 90 lbs if wet sand)