Freeware volume calculator for irregularly shaped pool
in [Freeware]
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From: Donna Ohl on 18 Jul 2010 03:03 On Sat, 17 Jul 2010 11:19:31 -0700 (PDT), gpsman wrote: > I suspect the "standard" method is considered "close enough" in the > pool industry. A pool professional told me almost everyone underreports their pool volume because they forgot to take into account the appreciable volume of water in the plumbing and filters and solar equipment. He said the rule of thumb for the amount of water locked up in all that plumbing is equal to the last two inches. So, for example, if you have the standard 60x15 foot rectangular pool, your last two inches are about 1,000 gallons. Whatever calculation you come up with, add 1,000 gallons for the water in the plumbing, assuming that pool pro knew his stuff.
From: HeyBub on 18 Jul 2010 08:52 LM wrote: > What good is calculus if nobody practically uses it. > My pool has an uneven bottom (shallow and deep and varying greatly). > > All pool-volume calculators I can find assume a gently sloping bottom > (and therefore use geometric simplifications). I want to try a > calculus based pool volume calculator (that takes the actual shape of > the bottom curve into consideration). > > To obtain an accurate pool water volume, I just measured in two dozen > places every few feet the varying depth of an irregularly shaped pool. > > I realize, with those numbers, I can draw a side view and then break > it into squares to calculate the volume but there must be a calculus > volume calculator out there that will take the shape of the bottom > curves. > > But since this is a common need of every pool owner of an irregularly > shaped pool, I wonder if there is a good freeware calculus (not > geometry) pool volume calculator out there that you recommend. > > Googling, I found these two Windows freeware volume applications: > * AD Geometrical calculator > http://www.filetransit.com/view.php?id=4749 > * Volume Calculator > http://www.freewarefiles.com/Volume-Calculator_program_43621.html > > And, of course, there are the generic geometric pool-volume > calculators (which all suffer from geometry assumptions): > * > http://www.pentairpool.com/pool-owner/resources/calculators/pool-volume-calc/poolcalc.htm > * http://www.poolspa.com/calculator/ > * http://www.poolwizard.net/pool-volume/ > * > http://www.backyardcitypools.com/swimming-pools/Pool-Volume-Calculate.htm > * http://www.poolandspachemicals.co.uk/volcalc.htm > * http://www.havuz.org/pool-calculators.htm > * http://www.poolfactoryonline.com/tutorials/pool-volume-calculator > * http://poolways.com/volume.html > > What good is calculus if nobody uses it? > Do know of any volume calculators that will take the shape of the pool > bottom (measured in two-foot increments) into consideration accurately > without geometric simplification? You have a nail and are looking for a screwdriver. Calculus doesn't deal with random measurements. You must first write the equation for the curve of the bottom. THEN you can integrate over the range. If you don't want to do that, look up MONTE CARLO METHOD.
From: Rocinante on 18 Jul 2010 09:54 On Sat, 17 Jul 2010 14:13:57 -0400, Metspitzer wrote: > On Sat, 17 Jul 2010 14:11:12 -0400, "JoeSpareBedroom" > <newstrash(a)frontiernet.net> wrote: > >>"LM" <xxxvte.lisa.meisnerxxx(a)verizon.net> wrote in message >>news:i1slme$ah4$1(a)speranza.aioe.org... >> >>> >>> But since this is a common need of every pool owner of an irregularly >>> shaped pool,..... >> >>(snip) >> >>Why do you imagine that every owner of an irregularly shaped pool needs to >>know how much water it takes to fill the pool? >> > > Gee......Woudn't that stuff be in the manual? Yup, he should go find the manual or even download it. It should have this information since pools are involved in many civil suits. -- Thus spake the master programmer: "Let the programmers be many and the managers few -- then all will be productive." -- "The Tao of Programming" RocinanteREMOVETHIS(a)gmail.com 7/18/2010 9:53:15 AM
From: krw on 18 Jul 2010 11:48 On Sun, 18 Jul 2010 07:03:40 +0000 (UTC), Donna Ohl <dohl(a)Use-Author-Supplied-Address.invalid> wrote: >On Sat, 17 Jul 2010 11:19:31 -0700 (PDT), gpsman wrote: >> I suspect the "standard" method is considered "close enough" in the >> pool industry. > >A pool professional told me almost everyone underreports their pool volume >because they forgot to take into account the appreciable volume of water in >the plumbing and filters and solar equipment. > >He said the rule of thumb for the amount of water locked up in all that >plumbing is equal to the last two inches. So, for example, if you have the >standard 60x15 foot rectangular pool, your last two inches are about 1,000 >gallons. > >Whatever calculation you come up with, add 1,000 gallons for the water in >the plumbing, assuming that pool pro knew his stuff. A 2" pipe holds about 2 gallons per foot. Unless you have some *seriously* long pipes the "pro" is full of BS. The error in measurement of the bottom geometry would swamp this.
From: krw on 18 Jul 2010 11:50
On Sun, 18 Jul 2010 07:52:09 -0500, "HeyBub" <heybub(a)NOSPAMgmail.com> wrote: >LM wrote: >> What good is calculus if nobody practically uses it. >> My pool has an uneven bottom (shallow and deep and varying greatly). >> >> All pool-volume calculators I can find assume a gently sloping bottom >> (and therefore use geometric simplifications). I want to try a >> calculus based pool volume calculator (that takes the actual shape of >> the bottom curve into consideration). >> >> To obtain an accurate pool water volume, I just measured in two dozen >> places every few feet the varying depth of an irregularly shaped pool. >> >> I realize, with those numbers, I can draw a side view and then break >> it into squares to calculate the volume but there must be a calculus >> volume calculator out there that will take the shape of the bottom >> curves. >> >> But since this is a common need of every pool owner of an irregularly >> shaped pool, I wonder if there is a good freeware calculus (not >> geometry) pool volume calculator out there that you recommend. >> >> Googling, I found these two Windows freeware volume applications: >> * AD Geometrical calculator >> http://www.filetransit.com/view.php?id=4749 >> * Volume Calculator >> http://www.freewarefiles.com/Volume-Calculator_program_43621.html >> >> And, of course, there are the generic geometric pool-volume >> calculators (which all suffer from geometry assumptions): >> * >> http://www.pentairpool.com/pool-owner/resources/calculators/pool-volume-calc/poolcalc.htm >> * http://www.poolspa.com/calculator/ >> * http://www.poolwizard.net/pool-volume/ >> * >> http://www.backyardcitypools.com/swimming-pools/Pool-Volume-Calculate.htm >> * http://www.poolandspachemicals.co.uk/volcalc.htm >> * http://www.havuz.org/pool-calculators.htm >> * http://www.poolfactoryonline.com/tutorials/pool-volume-calculator >> * http://poolways.com/volume.html >> >> What good is calculus if nobody uses it? >> Do know of any volume calculators that will take the shape of the pool >> bottom (measured in two-foot increments) into consideration accurately >> without geometric simplification? > >You have a nail and are looking for a screwdriver. > >Calculus doesn't deal with random measurements. You must first write the >equation for the curve of the bottom. > >THEN you can integrate over the range. > >If you don't want to do that, look up MONTE CARLO METHOD. Pick a number, any number. |