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Salt in a Nutshell
Hi Lee,
Notwithstanding the impeccable source, something has suffered in the translation :-( I think you will find that the second statement should read; 1 lb of salt in 100 gallons of water = 0.012% -- Ken Russell "Lee B." wrote in message ... | The numbers are kinda rounded to keep it simple. By the time you extrapolate | the decimal from 1 gallon to 100 gallons, it goes up just a little bit. | Read a bit further down in the message and the conversion factors are | shown/proved (all in metric). I got this info from a trusted source who's | much better at math than I am: it's a "cheat sheet" that allows you to do | the math without having to access web-based calculators. | | Lee | | "Ken Russell" wrote in message | u... | One of your numbers is off by a factor of 10. | | If 1 lb. of salt in 1 gallon of water = 1% salinity | Then this CANNOT be correct; | 1 lb. of salt in 100 gallons of water = .12% | | | Ken Russell | | "Lee B." wrote in message | ... | | For those that need to calculate the size of their pond using salt, or | need | | to figure out how much to add: | | | | Salt in a Nutshell | | | | | | | | 1 lb. of salt in 1 gallon of water = 1% salinity | | | | 1 lb. of salt in 100 gallons of water = .12% | | | | (These are "generally accepted" numbers; if you want to "proof" the | numbers, | | it goes like this: 1 lb. salt /100 gallons water (convert to metric) = | 454 | | grams of salt / 378.5 liters of water = 454 grams of salt / 378,500 | grams | of | | water = 0.001199 ppm, or 0.12%) | | | | | | | | If there is no salt reading in the pond: | | | | # salt x 12 / % salinity = gallons of water | | | | Example: | | | | 25 lbs salt x 12 = 300 / .3 (salinity) = 1000 gal. | | | | | | | | If there is an existing salt reading: | | | | R1 = Reading 1 (existing); R2 = Reading 2 (resultant) | | | | # salt x 12 / (R2-R1) salinity = gallons of water | | | | Example (Say the existing salt level was .15; after salt it was .3, so | the | | number we're looking for is .3 - .15 = .15): | | | | 50 lbs. salt x 12 = 600 / .15 = 4000 gallons | | | | | | | | To get # salt needed with known gallons: | | | | (desired % / 12) x gallons of water = # salt | | | | Example (If you want to achieve a .2% of salt in a 1500 gallon pond): | | | | .2/12 = .01666 x 1500 = 24.999 lbs. of salt (call it 25!) | | | | | | | | Note: If there are salt levels already in the pond, remember to subtract | R1 | | from R2 to get your final reading; if you want a final reading of .2, | but | | the initial reading is .05, then the actual number you're looking for is | .15 | | (not .2) | | | | | | | | I hope this helps. | | | | | | | | Lee | | | | | | | --- | Outgoing mail is certified Virus Free. | Checked by AVG anti-virus system (http://www.grisoft.com). | Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/2004 | | | | --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/2004 |
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