500 / (9 x9) = 6.17
so round up to 7ft
6 cubic feet tall
Just divide the number of gallons by the number of square feet.
At least 80
Shade from surrounding trees has the least effect on lake water temperature.
you should clean it at least once a month because it can get damaged if you don't. your water will also be cleaner.
No....The number needs to be at least a 5.
No you shouldn't not for at least a day or two.
you should be at least 20% of the water each time you clean it and you should do alittle more each time
Water should be boiled for at least one minute to effectively kill bacteria.
Water should be boiled for at least one minute to effectively kill bacteria.
At least 30 seconds with warm water.
We should at least consume 8 glasses of water a day.