- Jun 1, 2018
- 16,027
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
The may need a home visit from the Pooldiatrist 
Pool Math-partially draining water
- Thread starter WBW
- Start date
LMAO!The may need a home visit from the Pooldiatrist
- Nov 12, 2017
- 12,660
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Well that's just ridiculous. How the heck can I measure one micrometer!? So can you convert that to inches for me?That is about 1 ounce per micrometer (μm), which is handy to know if you ever need to remove an ounce or two of water.
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- Feb 6, 2015
- 7,818
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Just use an empty shot glass.Well that's just ridiculous. How the heck can I measure one micrometer!? So can you covert that to inches for me?
Err .... make sure it's plastic, no glass anywhere near the pool.
Safety first.
- Nov 12, 2017
- 12,660
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Funny you should mention that! I have a great set of pool-safe cups and glasses and plates and bowls. All my family and friends know to use only those out by the pool. But last Fourth of July I caught a few party guests "breaking the rules," sneaking my glass shot glasses outside. So I later found these. They look great and are well made. Safety problem solved. Math problem solved, too!Just use an empty shot glass.
Err .... make sure it's plastic, no glass anywhere near the pool.
Safety first.
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If you know the square footage area of your pool at various depths you can compute the number of gallons in an inch by using the Area (sq ft) x 7.481 (gallons per cubic foot) ÷ 12 (in) or Area x 0.6234 to get gallons.
You can calculate the area of a geometric shape by dividing it into the smallest number of rectangles necessary and compute the area of each and sum them. For an irregular-shaped free-form pool, take as many measurements as practical and draw it to scale on graph paper (e.g. 1' = 1 square). Then count the number of full squares and add up the fractional squares. To calculate the area at various depths, subtract the area of any reductions in space as you go deeper (e.g. benches, dropping off shelf), using the graph paper if necessary. Curved walls typically do not make much of a difference unless there is a lot of slope near thst level. If you start getting down to where the slope of the bottom matters (e.g. 3.5'+) you have dumped a lot of water and can probably begin to use rough percentages of the pool or go back to the graph paper.
You can calculate the area of a geometric shape by dividing it into the smallest number of rectangles necessary and compute the area of each and sum them. For an irregular-shaped free-form pool, take as many measurements as practical and draw it to scale on graph paper (e.g. 1' = 1 square). Then count the number of full squares and add up the fractional squares. To calculate the area at various depths, subtract the area of any reductions in space as you go deeper (e.g. benches, dropping off shelf), using the graph paper if necessary. Curved walls typically do not make much of a difference unless there is a lot of slope near thst level. If you start getting down to where the slope of the bottom matters (e.g. 3.5'+) you have dumped a lot of water and can probably begin to use rough percentages of the pool or go back to the graph paper.