Your pool has 13600 gallons of water. This needs to be turned around in 8 hours. Which means your pump and filter (and pipes) should be able to push through 1700 gallons every hour. This works out to 28.3 gallons per minute (GPM). A 3/4 HP pump is rated for 55 GPM at 30 feet of head. This means that it can push 55 gallons per minute up 30 feet of vertical pipe. Now pushing water up 30 feet is an unlikely scenario for a swimming pool installation, but bear in mind that all pipes have their own resistance to flow especially with multiple bends in the pipe. A 3/4 HP should do fine for your application if there is nothing unusual in the setup of your pool. A bigger pump is not always better because it can end up damaging your filter by trying tp force too much water through it. Similarly, your filter should be able to handle the flow that your pump dishes out. Typically a 3/4 HP pump is paired with a 24" sand filter or a 175 sq ft cartridge filter.
A 3/4 HP pump is more then enough. You can go to a 1HP if you want to turn over the water quicker. You do have to be careful that the pump isn't too big for the filter. Typically a filter in the 18" range is enough, if you want to backwash less you can go bigger though.
Buy the largest filter you can afford, it will save you time and energy money in the future. The pump depends on what size Plumbing you have and what you are driving. Generally 1 to 1.5 HP pump should do it. Larger if you are driving jacuzzi jets or need extra suction for vacuuming. A two speed or variable speed pump will allow you to have the best of both worlds and saves energy dollars.
You don't mention the diameter of the round pool ... please be more specific.
Any Hayward filter that requires 150 lbs of sand or more will be more than sufficient.
you need at least a 3/4 horsepower pump; I would recommend 1 horsepower pump for best efficiency
That depends on how deep you want the top soil! 5' X 8' = 40 square feet. If you want it 1' deep you would need 40 Cubic Feet, 3" deep you would need 10 cubic feet of top soil.
Its more about water volume and filter area. We have a 100,000 gallon pool that uses 180 square feet of filter area - these consume 25 pounds of DE every time we backflush and recharge the filters. Assuming your pool is 5 feet deep on average you only have 3000 cubic feet of water which is about 23,000 gallons. So you would need roughly 6 or 7 pounds of DE. Of course if your pool has more water then you need more DE. Your filter manufacturers should tell you how much DE you need.
depends how deep it will be ask again and will answer
Using 24 feet x 4.5 feet as true measurements it would take 15,220 gallons of water to fill the pool.
(3.5 feet) * PI * ((9 feet)^2) = 6 662.46122 US gallons
At 3 inch deep and 27 foot round that is 3.14 x 27x27x3/12/4 = 143 cubic feet which is 143/27 = 5.3 yards. At 100 pounds/cu ft that weighs 14,300 pounds of dirt
You ride a bike by putting your feet on the pedals and then you go round and round, you need to keep your balance so you need to practice allot.
You need to tell us how deep it is.
It depends how deep you want it.
you could say......2 feet
One cubic yard of mulch will cover approximately 160 square feet at 2" deep, so you would need approximately two cubic yards of mulch to cover 271 square feet at 2" deep.
you need to take the filter out and dry out the air box and install a new filter, you must have went through some deep water.