My first question post!
How accurate does one need to be when calculating pool volume? How far off can it be +/- and still be close enough?
I had my pool cleaned by a pool cleaning business about 3-4 weeks ago. When he was cleaning it, he paced off the measurement and calculated the volume to be around 23k - 25k gallons (I forget the measurements he paced off though). When I received my TF100 test kit last week, I took out the tape measure and measured the pool to be 40x20 (40' 4" x 20" 4" to be exact, but not sure how much the 4 inches matter).
It's a rectangular pool except at the corners and it is 3.5' to 8' at the deep end. However, as can be seen in the picture I attached, the deep end is not exactly 8' deep all around. It starts to slope inward at the wall at 42" down from the top of the pool and the slope goes in 4'. Plugging in the numbers at 40 x 20 in a volume calculator, it equals 34.5k, which is a far cry different than the 23k -25k range I was told. Now, I am not sure if he accounted for the sloping at deep end or not, and maybe that is where he came up with the 25k number, but I do know a +/- 10k difference is something that could mess with the pool math when measuring chemicals and such (at least I think). Also, I am not sure if if adding the 4" on the measurements (40' 4" x 20' 4 ") is necessary either.
Is 34.5k gallons for volume a close enough number to use in the pool calculator app, or do I need to be a bit more precise? I have 34.5k as the volume on the app and have been using that while learning to use it.
How accurate does one need to be when calculating pool volume? How far off can it be +/- and still be close enough?
I had my pool cleaned by a pool cleaning business about 3-4 weeks ago. When he was cleaning it, he paced off the measurement and calculated the volume to be around 23k - 25k gallons (I forget the measurements he paced off though). When I received my TF100 test kit last week, I took out the tape measure and measured the pool to be 40x20 (40' 4" x 20" 4" to be exact, but not sure how much the 4 inches matter).
It's a rectangular pool except at the corners and it is 3.5' to 8' at the deep end. However, as can be seen in the picture I attached, the deep end is not exactly 8' deep all around. It starts to slope inward at the wall at 42" down from the top of the pool and the slope goes in 4'. Plugging in the numbers at 40 x 20 in a volume calculator, it equals 34.5k, which is a far cry different than the 23k -25k range I was told. Now, I am not sure if he accounted for the sloping at deep end or not, and maybe that is where he came up with the 25k number, but I do know a +/- 10k difference is something that could mess with the pool math when measuring chemicals and such (at least I think). Also, I am not sure if if adding the 4" on the measurements (40' 4" x 20' 4 ") is necessary either.
Is 34.5k gallons for volume a close enough number to use in the pool calculator app, or do I need to be a bit more precise? I have 34.5k as the volume on the app and have been using that while learning to use it.