Pool Water Volume Calculator: Calculating Water Needed for Your Inground Pool

```

Volume (in gallons) = Length (in feet) x Width (in feet) x Average Depth (in feet) x 7.5

```

Given the dimensions of the pool as 18 feet long and 32 feet wide, with a deep area, we need to know the average depth to calculate the volume. Assuming the deep area has a depth of 8 feet and the shallow area has a depth of 3 feet, we can calculate the average depth as follows:

```

Average Depth = (Deep Area Depth + Shallow Area Depth) / 2

```

Average Depth = (8 feet + 3 feet) / 2 = 5.5 feet

Now, we can substitute the values into the formula to calculate the volume of water needed:

```

Volume (in gallons) = 18 feet x 32 feet x 5.5 feet x 7.5

```

Volume (in gallons) = 27,540 gallons

Therefore, it would take approximately 27,540 gallons of water to fill the 18X32 inground pool with a deep area. Please note that this calculation does not account for any water lost due to splashing, evaporation, or other factors.