What size pool should I get and what would be the capacity of my pool?

To get an idea for the size of pool that will suit your garden and requirements, it is advised to chalk the outline and measure, it will also give you a visual idea. However, bear in mind that you will need to allow space for the paving that goes around the perimeter of the pool. To get a rough idea of what size pool you would like,  the average family sized outdoor swimming pool is around 10m x 5m (approx 32 feet x 16 feet) and an indoor pool is approx.  8m x 4m (28 feet x 14 feet).

It is very important to know the capacity of your swimming pool to enable the correct water balance to be maintained by adding the correct quantities of chemicals required to the water.  
Below is a quick formula to help you find out:

• For circular pools:

Imperial : Diameter (ft) x Diameter (ft) x Average Depth (ft) x 4.9 = Gallons

Metric: Diameter (m) x Diameter (m) x Average Depth (m) x 0.8 = Cubic Metres.

• For rectangle or square pools:

Imperial : Length(ft) x Width (ft) x Average Depth (ft) x 6.25 = Gallons

Metric: Length (m) x Width (m) x Average Depth (m) = Cubic Metres.

• For oval pools:

Imperial : Long Diameter (ft) x Short Diameter (ft) x Average Depth (ft) x 5 = Gallons

Metric: Long Diameter (m) x Short Diameter (m) x Average Depth (m) x 0.9 = Cubic Metres.

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