Aruba Spa Hot Tub Models 2003 - Manual (Page 39)

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P: pH is too low
A: Test and correct
P: Formation of chloramines
The formation of chloramines is chlorine combining
with nitrogen from body wastes, oils etc. - causes
familiar chlorine odour
A:
Correct by adding shock
P: Foaming of water
D: High concentration of oils and
organics being agitated by jets
A: Add antifoam
D: Soft water
A: Test and correct
P: Scale deposits
D: High calcium level, high pH, high
alkalinity
A: Test and correct
P: Water leaks or drips in equipment
D: “O” ring or seals drying out
A: Lubricate “O” rings or replace
P: Filter often has air in it
D: Water level is too low
A: Add water to appropriate level