Pros and Cons of a Saltwater System

[Spensar]

I have found that closer to 2000 ppm is the point at which I notice a difference. Let me tell you, what a difference it is. Just add pure water softener salt, let it disolve and walla!

Dave

How do you add it, pre-dissolve in water or just broadbcast in the deep end?

[KurtV]

Just dump it in near the main drains; it'll dissolve and get distributed through the return(s) in a matter of minutes.

[Spensar]

Any rouigh rule of thumb on how much pure water softener salt is required to raise the salt content a certain ppm for a given quantity of water. eg. x pounds to get 50 ppm for 10,000 gallons.

[joelq]

You can use the BleachCalc - follow this thread for information on where to get it: http://www.poolforum.com/pf2/showthread.php?t=4735. It performs a wide variety of chemistry calculations, including those for salt.

For example, according to BleachCalc, for a 10000 gallon pool, adding a 40 lb bag of salt will raise the salt level by 479.9 ppm. Keep in mind that your pool water probably already does contain a couple to a few hundred ppm of salt as well.

[Sumo1]

For example, according to BleachCalc, for a 10000 gallon pool, adding a 40 lb bag of salt will raise the salt level by 479.9 ppm. Keep in mind that your pool water probably already does contain a couple to a few hundred ppm of salt as well.[/QUOTE]


When I converted to SWG, the product manual suggested about 800# of salt for a 30K gal pool (mine is about 27K), yet I only needed 550# to get to 3200ppm. That would suggest the water had maybe 500-1000ppm salt just through sweat and atmosphere(?). If the calculations are incorrect, please forgive me-I majored in English, not math. My point is, buy some salt test strips and get a feel for how many ppm a bag adds to your pool, because it will always be dropping. I hope this helps someone.
Hal