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KC

On 2/25/2014 12:44 PM, HanK wrote:
On 2/25/2014 12:10 PM, wrote:
On Tue, 25 Feb 2014 06:40:27 -0500, "Mr. Luddite"
wrote:

You are shocking the water every time it goes through the generator.

I have a couple of neighbors with salt systems. About half are happy,
one has tossed it and gone back because they could not keep the water
clear without shocking the pool once a week. All of them still shock
it now and then.
I think a lot has to do with how hot the water is running. The one
with the real problems cruises at 90 or more all year because she
wants it hot. They have 10 solar collectors for a 10,000 gallon pool
and she keeps if covered most of the year.

I don't know where you got all your information but it's nonsense.
I'd say bull****, but you're a nice guy. :-)

The generated chlorine is in the pool water and registers in the pool
sample tests indicated by free chlorine and total chlorine. I can
"shock" the pool if necessary by enabling a timer setting on the
controller to run the cell continuously for a pre-programed period of
time (like 24 hours). If you do that after the pool has stabilized you
can smell the chlorine by just walking by the pool. The chlorine smell
isn't coming from the generator cell. :-)

I just know what the guy told us. Have you even seen one of those
cells run in a clear glass vessel?
He had one at the seminar. When it runs there is a chlorine foam that
turns the water greenish milky white and by the time it gets to the
end of the vessel, most of that chlorine is gone, put back into the
salt compound.
Maybe the guy who invented it does not understand how it works. I
don't really know.
Granted most of the thrust of his pitch was the convoluted process he
had to go through to get the U/L listing.

If the chlorine concentration ends up being as strong as it is in a
regular pool (3 ppm or so), a lot of the sales pitch goes out the
window.

You like parts per trillion. The pool industry uses parts per million
to express salt content. The salt content in the water in a salt system
is maintained between 2,800 and about 3,600 parts per million (max). A
human cannot detect or sense the presence of salt in the water below
about 5,000 parts per million (your contact lens solution example).
I have never tried cooking pasta in the pool. -)

Parts per THOUSAND not trillion. Don't go all Harry on me here.

I also want to know how they test down to that precision without using
lab grade equipment. It certainly isn't going to be one of those
aquarium testers.

If you can't taste a teaspoon of salt in 2 liters of water, you eat
too much salt.

If you know people who were dissatisfied because the pool water wasn't
as clear with a salt system, that would be the first time I've ever
heard that complaint. A salt system's water is typically clearer than a
conventional tablet or liquid chlorine system. The generated chlorine
is purer than any tablet or liquid and it's concentration is lower.
Maybe the person or persons that reported that to you had other filter
problems.

I just know they had a pool company guy there almost every day, all
last summer.
The last I heard they were going to get their money back on the salt
system and go back to regular chlorine.
Next time I see them I will ask what happened.

Salt sanitation is great. keep the salt concentration between 3000 and
3600 PPM and adjust chlorine levels between 2 and 5 PPM. Keep PH between
7.4 and 7.6 PPM and you're good to go. Stabilizer at 50 PPM helps keep
the other indicators from bouncing. There's a couple other things to
test for but they're minor.

Maybe the system couldn't keep up.... The heat and sun (iirc) take the
chlorine back to a salt state, where it goes through the filter and gets
converted back to chlorine. If the system isn't big enough, and the sun
is direct all day, maybe they just didn't know what they were doing...