where is my chlorine?

riseandrun said:
Leebo, I don't know if your link was to an older version, or maybe I have old pool charts, but it says right on my paperwork between .5 and 5ppm. or I have to close the pool.

Could they be really precise in their use of language? Between 1 and 3 would mean > 1 < 3; between 1 and 3 inclusive would be = or > 1 and < or = 3.
 
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