WEBVTT

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Do you ever have scale problems
in your swimming pool, maybe

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some abrasive surfaces or
some etching on your plaster

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surface?

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You ever have that
chalking white line

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from the wet/dry effect
around your pool?

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If so, chances are you have
a problem with the Langelier

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Saturation Index,
also known as the LSI.

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The LSI is just an index
on mineral saturation,

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primarily in swimming pools,
we're talking about calcium.

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When we're talking about
mineral saturation,

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how much can the
water hold before it

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starts falling out of solution?

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If the LSI is too high,
calcium falls out of solution

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and it forms scale.

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On the low end, it doesn't
have enough calcium,

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it's hungry for it,
the LSI is too low

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and it starts drawing calcium
out of the plaster surfaces,

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or anywhere that it can
to find equilibrium,

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and you get etching.

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Now scale is treatable.

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We have SC-1000 1,000,
which can help with that.

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Etching is not treatable, that's
permanent damage to the plaster

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surface.

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To us, the LSI is of
critical importance.

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And it relies on six
factors, calcium hardness,

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the temperature-- and
that's a big one--

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the pH, the carbonate
alkalinity-- not just

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the total alkalinity but
the carbonate alkalinity--

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your total dissolved solids,
and the amount of stabilizer

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you have in the pool.

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Understanding a balanced LSI
is critical to maintaining

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a healthy pool.

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The goal is to be as
close to 0.0 as possible.

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And if you're within the
range, you should be OK.

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If you're out of
range, you're going

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to have either
etching, or scale,

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depending on whether you
are negative on the LSI

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or positive on the LSI.

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As a reminder, if you
need help with the LSI,

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just use our free mobile
app, called Orenda,

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available in the app
store and Google Play.

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Or visit our website,
Orendatech.com.

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I'm Eric Knight with Orenda.

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Thank you for your time.

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