But also on a cost perspective the SWG are not cheap, a decent unite is going to cost a bit more than $1000. how much chlorine can you buy for $1000? then consider the lifespan of a cell, convenience yes save $$$ not to sure.
I did a cost breakdown when I decided to go SWCG. The IC40 cell cost me $600, and here was my break down, assuming the cell lasts for 5 years. But as you can read in the forum, many last longer if you keep the CSI in check and don't acid clean it regularly.
How much FC can you replenish per day, for 5 years, given $600 of 10% liquid chlorine:
At $4 for a gallon for 10% chlorine, $600 buys you 150 gallons.
Converted to ounces (128:1), that's 19,200 ounces.
Spread across 5 years (1825 days), that's only 10.5 ounces a day.
10.5 ounces of 10% equates to about a 0.56ppm rise in FC for a 14,000 gal pool.
How much would you spend to replenish 2 FC per day, using 10% liquid chlorine, for 5 years:
2 FC equates to 36oz in a 14,000 gal pool
36oz per day, for 5 years (1825 days) is 65,700 ounces
Converted to gallons (128:1), that's 513 gallons
at $4 per gallon, it's a total of $2,052 over the 5 year period.
How long would $600 worth of 10% last with a 2 FC per day requirement:
$600 buys 19,200 ounces at $4 per gallon
19,200 ounces divided by 36oz (amount needed to replenish 2 FC for a 14,000 gal pool) is 533 days
533 days is 1.46 years
Obviously, how big your pool is, and how much FC loss you have due to the sun, swimmer load, organics, etc ... all play a part here. As well as how much liquid chlorine costs if your area ... I just used 14,000 gallons, $4, and 2 FC as the example.