Water Hardness Test Kit - Quick and Accurate Water Hardness Test Strips - Hard Water Test Kit with eBook - Ultimate Test Kit for Water Hardness - 150 Water Softener Test Strips by JNW Direct

These test strips work perfectly and give quick, clear results. I used them to check the hardness of my tap water and my softener system — both readings were accurate and easy to interpret thanks to the color chart. The included eBook is a nice touch, explaining water hardness and maintenance tips in simple terms. With 150 strips, it’s an excellent value for ongoing testing.

Easy to use. Comes with instructions and it comes in a durable, water proof container that protects it from the stone. The quantity of strips you get for the price is also very good.

Does what it says though compared to my other test strips it's sometimes iffy with readings

These strips are very easy to use and the results are easy, straightforward to read. You do have to work very quickly for accurate results but after using them a few times you’ll get a routine down and have no issues. They offer a free ebook/manual that provides very detailed instructions as well as descriptions of each chemical, the dangers of having too little/too much of it in your pool/spa and how to correct & maintain proper levels. You’re able to print this ebook right from their website as a PDF. Ordered these strips after clearing up algae that left us with insane cloudiness afterwards that we couldn’t clear no matter what we tried. Spent a few hundred dollars at our local pool store on all their recommended chemicals that didn’t work. Took in multiple water samples for them to tell us everything was perfectly within normal range but “here use this, it’ll clear ya right up”. These strips immediately showed us our chlorine & bromine levels were off the charts too high, alkalinity way too low. Once correcting those levels we’re slowly getting back to crystal clear water. I highly recommend these strips, we’ve added these as a product to purchase yearly for our very short Northeast Ohio pool seasons.

Good value! Easy to ready! Fairly accurate readings! Good quality!

These are pretty good. Cheap brands tend to show levels are higher than they are, not showing the mid range of color. More expensive brands tend to have less tests per strip so you need to buy more types of tests. This ones quick and easy showing both total chlorine and available chlorine, bromine, alkalinity, ph, and hardness

Strip work well and easy to use.

It is inexpensive, fast, and easy. Accuracy is questionable though, and that is problematic for me. I think I have gotten mostly accurate readings over the last several uses, but I did not double check all the measurements to test if what I think is correct or not. I cannot rely on these tests strips for an accurate reading of free chlorine today. In the first picture, the color range result for the free chlorine test strip looks like 0-.5ppm. It is the third row (the text strip is longer than the bottle). If I solely relied on this reading, I would have added chlorine to increase the chlorine level. That would have been a mistake. Yesterday, the free chlorine reading in my pool was 3.44ppm, which is a little high. I live in South Florida, and it rained yesterday and overnight, so I expected a small drop in free chlorine, but not this. I tested the water, immediately after this test strip reading, with a digital meter, and the free chlorine reading is actually 2.51ppm. I bought this product hoping to lower the amount of times I use more expensive test strips for my digital meter. Unfortunately, that expectation was too high. I would only use this product in between tried and true testing for a red flag.

These are the best test strips I have used over the six years I have had a pool. As well as testing my water, I have tested the strips by adding measured amounts of chemicals into the pool water and checking the change in results. These strips are very accurate within the parameters stated. Very useful to have the CNA measurement which many strips ignore. The colour differentials are good and the strips are very easy to use. Buy these..!!!!!!!!

Worked well, just what I needed to test the effectiveness of my water softener.

Very good product, simple to use and good value.

Nachdem wir uns einen Pool und ein erstes Starter-Set zur Wasseraufbereitung zugelegt hatten, war klar, dass wir bessere Test-Stäbchen zur Kontrolle der Wasserqualität brauchen. Die im Starter-Set enthaltenen Stäbchen waren nicht wirklich aussagekräftig. Nach einer längeren Suche bin ich dann über diese Teststreifen gestoßen. Alle wichtigen Werte sind dort enthalten und können ganz einfach bestimmt werden. Nach Erhalt wurden diese umgehend getestet. Dose auf, Stäbchen eingetaucht, kurz gewartet und abgelesen. Alles sehr einfach und schnell. Sehr gut finde ich, dass die Skala einen Soll-Bereich anzeigt, indem die Wasserqualität liegen sollte. Die vereinfacht alles und man erhält sofort eine Tendenz. Sollte ein Wert aus dem Ruder laufen erkennt man schnell, welcher dies ist und kann so zeitnah reagieren. Natürlich habe ich am Anfang 3 Stäbchen nacheinander getestet. Ich wollte wissen, ob die Ergebnisse reproduzierbar sind oder jedes Stäbchen einen anderen Wert zeigt. Alle zeigten das gleiche Ergebnis. Ich bin sehr zufrieden und habe nun, für meinen Teil, die Test-Stäbchen meines Vertrauens gefunden.

Les 100 Bandelettes Spa et Piscine 7 en 1 sont un outil essentiel pour tous les propriétaires de spa et de piscine. Ces bandelettes offrent un moyen rapide et fiable de tester différents paramètres de l'eau tels que le brome, le pH, la dureté et le chlore. J'ai été impressionné par la facilité d'utilisation de ces bandelettes. Il suffit de tremper la bandelette dans l'eau pendant quelques secondes, puis de la comparer aux couleurs de référence fournies sur l'emballage. Les résultats sont clairs et faciles à interpréter, ce qui permet de prendre les mesures nécessaires pour maintenir l'équilibre chimique de l'eau de manière optimale. La polyvalence des bandelettes est un autre aspect positif. En testant plusieurs paramètres en une seule bandelette, elles offrent une solution pratique et économique. Plus besoin d'acheter différentes bandelettes pour chaque test, ce qui simplifie la gestion de l'eau de ma piscine ou de mon spa. De plus, la quantité généreuse de 100 bandelettes dans un seul paquet offre une grande durabilité. Cela signifie que je suis bien approvisionné pour plusieurs saisons sans avoir à me soucier de manquer de bandelettes. En résumé, les 100 Bandelettes Spa et Piscine 7 en 1 sont un outil précieux pour maintenir l'équilibre chimique de l'eau de ma piscine ou de mon spa. Leur fiabilité, leur facilité d'utilisation et leur polyvalence en font un choix idéal. Je recommande vivement ces bandelettes à tous les propriétaires de piscine ou de spa soucieux de maintenir une eau saine et équilibrée.