Water Hardness Test Kit

By Calmag Product code: 91729 Pack size: Each

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Product Details

• 15 droplet tests in one kit
• Colour changes to reflect exact water hardness level
• Gives recommendations of required water treatment
Helpline No. 01535 210320.

Delivery details

Covid-19 Update

  • FREE Next Business Day delivery is available for orders over £25 for orders placed before 9pm Mon-Thur and before 6pm Sunday
  • Saturday and Sunday delivery is available for orders placed before 6pm on Friday for Saturday Delivery and 4pm Saturday for Sunday delivery. Items over 30kg can only be delivered next Business Day Mon-Fri. Orders placed after 9pm Thursday will be delivered the following Monday see here for details
  • Pre-12 delivery service is now available for weekday deliveries. Place your order before 9pm Mon-Thur for next business day delivery by 12pm. Orders placed after 9pm Thur and before 6pm Sunday will be delivered by 12pm Monday. UK mainland only
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • Delivery direct from suppliers is available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Mon-Fri (order by 9pm Mon-Thur & Sun by 6pm) delivered before 6pm £5 Free Free
Pre-12 Delivery Mon-Fri (order by 9pm Mon-Thur & Sun by 6pm) delivered before 12pm next day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery (order by 6pm Friday) delivered before 6pm £10 £5 Free
Sunday Delivery (order by 4pm Saturday) delivered before 6pm £10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details

Covid 19 Update

Click & Collect

We are fully open and delighted to welcome our customers into our branches.

Our opening times are 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday

Our speedy 5 min Click and Collect service remains one of the safest ways to buy from us and minimises your time in store. Place your order at toolstation.com 7 days a week, and travel to store once your collection confirmation is received by email or text message.

Don’t forget your mobile number – Please ensure that your mobile number is added so that we can text you when your order is ready to collect.

Your items will be held at your selected Toolstation branch for 14 days, after which point your order will be put back to stock and refunded automatically.

Water Hardness Test Kit is rated 3.5 out of 5 by 36.
Rated 5 out of 5 by from Good Test Good test to check if water needs treatment
Date published: 2021-02-21
Rated 5 out of 5 by from Water Softness Testing Fluid An easy no trouble purchase. Shop assistant was very helpful in locating other goods I needed.
Date published: 2021-02-15
Rated 1 out of 5 by from Wildly inaccurate! Check expiry date before paying I can only assume that there's a quality control issue here as some people's reviews are very positive and say the results seem right. Southern Water say my supply is 250ppm or 17.7 degrees Clarke, My old 2-bottle kit was very consistent with this and itself over time. My water softener is functioning and the old kit gave a value of 12 Clarke. A test strip read 7-11 GPG or about 150 ppm. This Calmag test took 25 drops for the colour change from pink to blue. It was a clear change; impossible to miss. I agitated the bottle after every drop and have had years of experience! 25 drops means 500ppm, which is twice the level stated by the supply company!! I shall be contacting Calmag. I have just checked the expiry date; 07/20! It seems i should contact Toolstation, who sold it to me 2 days ago!!!
Date published: 2020-10-10
Rated 5 out of 5 by from Nice Good buy..............,,,,
Date published: 2020-07-22
Rated 3 out of 5 by from Easy test for hard water Quick and easy to use product to test water hardness. Shame it has very short shelf life, less than a month.
Date published: 2020-06-29
Rated 5 out of 5 by from I came; I did; I went! I placed my online order; I successfully used my credit card to pay, got into my car, went to the outlet, queued in a manner respectful of social distancing, collected my order and left with a smile on my face!
Date published: 2020-06-26
Rated 4 out of 5 by from Good Seems to work about right. Have used with my tap water and water out of a Brita jug and seems to be about accurate though i have now way of being sure.
Date published: 2020-06-16
Rated 5 out of 5 by from Water hardness Test Good price and easy to use Instructions just fill to 10ml add one drop mix then count drops after
Date published: 2020-04-23
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