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TURBIDITY TUBE
The Turbidity Tube is designed to gauge the level of
suspended solids present within the heating system
water.
It is useful not only to demonstrate the level of clarity and
contamination to you and your client, but also as a
comparative tool to monitor that the discharge (dump)
water is successfully clearing during the power flushing
process.
Equipment required
Kamco Turbidity Tube
White card
Jug or beaker (circa 1 litre)
(Use the container cap as a measuring jug)
Issue: May 2023
Section F – Power Flushing Accessories
Test procedure
Hold the cylinder vertically over a white surface and view
downwards.
Use the jug to collect a free-flowing water sample from
the dump hose.
Without delay (to avoid settlement of particulate matter)
slowly pour the contents of the jug into the turbidity
cylinder whilst looking down the column of water from
above. Stop as soon as the black rings cannot be seen and
take a reading at the top of the water column.
Continue dumping until the reading is above the "Kamco
pass mark", and the black "O" rings can still be seen.
Important
Always use in a well-lit room.
Wash thoroughly before and after use.
Do not hold the cylinder whilst taking readings as this
affects the amount of light entering the cylinder.
Note
Although a turbidity test is a useful means of checking the
clarity, it is essential to also test the pH of the system
water prior to disconnecting the power flushing pump.
This equipment measures only 'suspended solids'
Accurate comparative 'total dissolved solids' (TDS)
readings can be taken with an electronic TDS meter.
Page F.15
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