Cowirra vs Mannum

Name: Water Quality Comparison: Cowirra vs Mannum
Creator: WaterScore
License: https://creativecommons.org/licenses/by/4.0/

Side-by-side tap water quality comparison

Mannum, SA

8.9

Quality Score

Supplied by SA Water

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Which suburb has better water?

It's very close! Cowirra scores 9.1/10 and Mannum scores 8.9/10. Both suburbs have similar water quality based on ADWG compliance data.

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Recommended for this suburb

Chlorine in Mannum is 1.3 mg/L — that's high. It's why your tap water smells like a pool.

Chlorine is added on purpose (kills bugs in the pipes), but by the time it reaches your tap it ruins everything you taste. Tea takes on a medicinal edge. Kids turn down water and drink juice or soft drink instead. The usual family fix is bottled water, but a simple carbon filter is the cleaner daily habit. Worse, many filter pitchers go in the fridge and get ignored because they're slow.

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Visual comparison

Cowirra, SA

Mannum, SA

Key metrics comparison

Hardness (mg/L)

Cowirra

82 Higher

Mannum

75 Lower

pH Level

Cowirra

0.05 Outside range

Mannum

0.05 Outside range

Fluoride (mg/L)

Cowirra

0.1 Lower

Mannum

0.8 Higher

Chlorine (mg/L)

Cowirra

0.8 Lower

Mannum

1.3 Higher

Full water quality comparison

All parameters compared against Australian Drinking Water Guidelines (ADWG)

Parameter	Cowirra	Mannum	Unit	ADWG Guideline
Alkalinity	79 Measured	51 Measured	mg/L	No limit
Aluminium	0.011 Good	0.018 Good	mg/L	< 0.2
Calcium	16.4 Measured	13.7 Measured	mg/L	No limit
Chloride	78 Good	74 Good	mg/L	< 250
Colour	1 Good	1 Good	HU	< 15
Copper	0.0265 Good	0.0179 Good	mg/L	< 2
E. coli	0 Compliant	0 Compliant	cfu/100mL	< 0
Fluoride	0.1 Good	0.8 Good	mg/L	< 1.5
Free Chlorine	0.8 Good	1.3 Good	mg/L	< 5
Hardness	82 Good	75 Good	PPM or mg/L	< 200
Iron	0.0046 Good	0.053 Good	mg/L	< 0.3
Lead	0.0002 Good	0.0006 Good	mg/L	< 0.01
Magnesium	10.05 Measured	9.87 Measured	mg/L	No limit
Manganese	0.0003 Good	0.0095 Good	mg/L	< 0.1
Nitrate	0.92 Good	1.11 Good	mg/L	< 50
pH	0.05 Outside range	0.05 Outside range	µg/L	6.5 – 8.5
Sodium	53.8 Good	52.2 Good	mg/L	< 180
Sulfate	16.7 Good	48.5 Good	mg/L	< 500
Total Chlorine	0.9 Good	1.5 Good	mg/L	< 5
Total Dissolved Solids	252 Good	260 Good	mg/L	< 600
Turbidity	0.1 Good	0.1 Good	NTU	< 5

Explore further

Cowirra

Mannum

Disclaimer: This comparison is for general informational purposes only and does not constitute medical advice or professional guidance. Data is sourced from SA Water. Values shown are based on the most recent published water quality reports and may not reflect real-time conditions at your tap. Water quality can vary due to local plumbing, seasonal changes, and other factors. For specific health concerns, consult a qualified health professional or contact your local water utility. See our Terms of Use.