LaMotte Pool Manager Water Quality Handbook - Manual (Page 11)

Water Sampling
For best results the analyst should take samples from three
to four areas around the pool each day. This can be
especially beneficial in larger pools. Keep in mind that
samples obtained on the surface should always be avoided
since this may not be representative of the actual water
chemistry. Several “do’s” and “don’ts” include:
Do’s
1.
Rinse the sampling container several times with the
water to be tested.
2.
Holding the sampling container sides, immerse to
elbow depth, approximately 15 inches or more
below the surface, keeping the container six inches
away from the side wall.
3.
Always test the water sample promptly after
collecting it.
Don’ts
1.
Never collect a sample
near a make-up water
inlet, return area, or next
to chemical feeders.
2.
Never test a water sample
immediately following a
shock treatment.
3.
Never use a sampling container that is in any way
dirty or has a rusty lid—use plastic whenever
possible. Glass should not be allowed in the pool
area.
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