Water Hardness Test Strips - Pack of 10

Water hardness is the silent killer of espresso machines. Too much mineral content causes scale buildup that clogs groupheads, damages heating elements, and blocks solenoid valves — often voiding warranties. These disposable test strips give you a precise hardness reading in seconds, so you know whether your current filtration is working or if you need to adjust before problems start.

Key Features

• 10 disposable strips for ongoing monitoring (retest every 3 months recommended)
• Simple dip-and-read process — results in under 60 seconds
• Measures total hardness in ppm or grains per gallon
• Works with any water source — tap, filtered, remineralized RO, or bottled
• Helps dial in filtration systems like BWT Bestmax or inline carbon filters

Pair these strips with Clive's filtration solutions and equipment care resources to keep your machine running clean and your espresso tasting its best.

Home espresso is a big investment, and we want you to be 100% in love with your new setup. That's why we offer 30 days to return your machine if it's not the right fit. While return shipping and a small restocking fee are your responsibility (unless there's an issue with the machine, in which case we'll cover everything), we'll make sure the rest of the process is smooth and simple.

In-stock items ship within 1-business day.

Free shipping on orders over $75. To be eligible for free shipping, the final order amount, after applying any discounts, including rewards points, must exceed $75.

Returns are accepted up to 30 days from the date the order was delivered. Smallware items must be unused. Open Box and Certified Pre-Owned are non-returnable.