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Chemical Sanitizer

Granular Chlorine

A Powder

Not stabilized with cyanuric acid (chlorine stabilizer)

Has an inherent high pH (over 11)

Ideal for shock-dosing

Not 100% soluble (needs to be pre-dissolved for at least a couple of hours)

Can cause cloudiness when added if pH is too high

Typical strength for poolgard HTC chlorine is 77% available chlorine

Long shelf life

Liquid Chlorine

A Liquid

Not stabilized

Has an inherent high pH (over 13)

Ideal for shock-dosing

100% soluble (can add directly to pool)

Can be added at any pH level without causing cloudiness

Typical strength for poolgard HTC chlorine is 15% available chlorine

Short shelf life (1-2 months)

Dichlor

A powder

Stabilized with cyanuric acid (chlorine stabilizer). Therefore, better for strong sunlight conditions which can break down chlorine rapidly.

Has an inherent neutral pH (around 7.0)

Ideal for daily sanitation, as it releases chlorine slowly

100% soluble (no need to be pre-dissolve)

Won't cause cloudiness when added if pH is too high

Typical strength for poolgard Dichlor is 56% available chlorine

Long shelf life

Tri-tabs

A 3 inch slow release tablet

Stabilized with cyanuric acid (chlorine stabilizer). Therefore, better for strong sunlight conditions which can break down chlorine rapidly.

Has an inherent acidic pH (around 3.0)

Ideal for daily sanitation, as it releases chlorine slowly lasting up to a week

100% soluble (no need to be pre-dissolve)

Won't cause cloudiness when added if pH is too high

Typical strength for poolgard Tri-tabs is 90% available chlorine

Long shelf life

Can cause bleaching because of its concentration if allowed to come into close or direct contact with the pool surface

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12y ago

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