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Test the hardness level of domestic water in less than 5 minutes. Easy to use with full instructions and suggested water treatments. Supplied with 20 tablets.

Test the hardness level of domestic water in less than 5 minutes. Easy to use with full instructions and suggested water treatments. Supplied with 20 tablets.
Average Customer Rating:
4.462 out of 5
4.5
 out of 
5
(13 Reviews) 13
Open Ratings Snapshot
Rating Snapshot (13 reviews)
5 stars
9
4 stars
3
3 stars
0
2 stars
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1 star
1
12 of 13(92%)reviewers would recommend this product.
Customer Reviews for Water Hardness Test Kit
Review 1 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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Simple and Effective
22 Apr 2014
By Keruso
, Chichester
"I suspected my domestic water softener wasn't working so I ordered this kit to check. Just fill the testing bottle with water, drop in tablets one at a time until you see a dramatic and obvious colour change. The number of tablets used determines water hardness. Very effective and cheap."
Review 2 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
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5 out of 5
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5 out of 5
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5 out of 5
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5 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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Good value
5 Oct 2013
By ISelinger
, Berkhamsted
"Simple, quick, effective and good value for money. Easier to use than the dropper type."
Review 3 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
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5 out of 5
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5 out of 5
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5 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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Simple to use, perfect results
16 May 2013
By IAlreadyHaveAName
, Chichester, West Sus
"So simple to use. Measure the correct quantity of mains water, add tablets one at a time until the colour changes.
The colour change is strong, so there's no doubt about the change point. With my water, it took 7 tablets: the chart says my water hardness is 270 ppm. On the Water Suppliers site, it says the average water hardness in my area is 278, so the result seems accurate.
The remaining tablets can be used as a quick test to see if your softener is working. Just drop one tablet into a cup of water and if the softener is working, the tablet will turn instantly. (You can compare this against the same test using mains water.)"
1 of 1 people found this review helpful.
Review 4 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
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4 out of 5
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4 out of 5
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4 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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notyetano1
8 Jan 2013
By reggiet
, Kettering
"Good product and exceedingly good value. Easy to use"
Review 5 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
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5 out of 5
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Features: 
5 out of 5
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5 out of 5
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5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
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Cheapest on the market
5 Dec 2012
By Mikey590
, Eynsham Oxfordshire
"For only £2.19 this test kit represents incredible value for money."
Review 6 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
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5 out of 5
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5 out of 5
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4 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
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Great Product
20 Mar 2012
By Quattro
, Bedford
"This product uses tablets which means it is easier and cleaner than other kits that use the drop by drop dye.
The colour change is strong so you can clearly see the hardness of your water."
Review 7 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
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5 out of 5
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5 out of 5
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5 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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5 out of 5
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Water Tester
25 Feb 2012
By Nigel2210
, Swindon
"Simple and easy to use, tested my water softener,would buy again."
1 of 1 people found this review helpful.
Review 8 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
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Features: 
5 out of 5
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5 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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5 out of 5
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Features: 
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Water hardness test kit
4 Aug 2011
By BobBuilder
, Bishop's Stortford
"Did the job perfectly and easily. Good value. No equivalent product found elsewhere. Will definately return to Screwfix in future."
Review 9 for Water Hardness Test Kit
Overall Rating: 
5 out of 5
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Would you recommend this product? Yes
Overall Rating: 
5 out of 5
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accurate
14 Mar 2011
By kipper92
, high wycombe
"Compared kit result (300 ppm) with Thames Water web site info. (295.5ppm). That's pretty accurate in my book!"
Review 10 for Water Hardness Test Kit
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
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Features: 
3 out of 5
3 out of 5
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4 out of 5
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4 out of 5
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Would you recommend this product? Yes
Overall Rating: 
4 out of 5
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4 out of 5
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3 out of 5
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Water Hardness Test Kit
10 Aug 2013
By ProfG
, Middleton-On-Sea
"Good value for money, easy to use, results compare well with those obtained by my plumber."
Review 11 for Water Hardness Test Kit
Overall Rating: 
4 out of 5
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4 out of 5
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5 out of 5
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4 out of 5
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Would you recommend this product? Yes
Overall Rating: 
4 out of 5
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4 out of 5
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5 out of 5
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Quick to Use
9 Jan 2013
By Mendit
, Norfolk
"This kit contains all that you need to check the hardness of your mains water in ppm in order to set up your water softener. Tablets are much easier to use than a kit that uses 'number of drops'. If you have very hard water then the kit only has sufficient tablets to to test the water once but there are usually enough tablets left to check that the water coming out of the softener is soft."
Review 12 for Water Hardness Test Kit
Overall Rating: 
4 out of 5
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4 out of 5
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4 out of 5
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4 out of 5
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Would you recommend this product? Yes
Overall Rating: 
4 out of 5
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4 out of 5
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good check on water softener
8 Jul 2010
By hondaman
, Morton Lincolnshire
"Seems very handy to check on your water softener operation. I have used this product to check our softener for some time.
Simple to use Soft water is Blue. Red is hard. Fill bottle to marked line and insert tablet. result is instant.
"
2 of 2 people found this review helpful.
Review 13 for Water Hardness Test Kit
Overall Rating: 
1 out of 5
1 out of 5
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Would you recommend this product? No
Overall Rating: 
1 out of 5
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Hardness test kit
1 Oct 2008
By yorkplumber
, York
"I would not buy this again, You are told to put a pre-measured amount of water into the bottle, there is no mark on the bottle for you to fill up to therefore making this test absolutely useless"
1 of 3 people found this review helpful.