4) Aquachek 511710 Pro Swimming Pool Spa 5 in 1 Test Kit Strips 5-Way 100 pack

I have been using these to test my pool water, they work well, I like them above other brands.

While some people complain about the accuracy they are perfect fo a daily quick check to alert you of any changes. Then I use a full test kit to check values if something is off.Don’t get concerned if you go past the expire date. I had a few old ones left that were 6 months past and they read Exactly like the new ones.Again they are for a Quick check and work perfect for us. We highly recommend them and use them everyday.

These testers seem to work fine for my pool. I’ve taken water to be checked at the local pool store, and the results match pretty closely. Recommend these!

I run a test with a Taylor test kit before I use the strips . To see how they compare . Have always been accurate. They don’t give a acid demand reading but they are accurate and easy to use .

Very good

So far I'm happy using these test strip. Very easy to use and I believe they're very close to being accurate.

We just installed a whole house chlorinator system. We didn't realize there was so much to setting it up, cleaning the existing plumbing, setting it up again for household use, and keeping an eye on the water's chlorine several times a day if not daily for the first 30 days after install.... and you go through a HUGE amount of these strips.We bought the Clorox, and another brand name, and we settled on these, first off because they are Hach brandname and because its only $20 for 200 strips! Clorox is $10 for 50!We now have purchased the Hach CN-66 testing unit for a more precise measure, and because our NYS Health Dept uses that for their testing. If we ever sell the house, we will have the whole set up that our NYS Health Dept recommends. I would use the strips because, IMO, there are good enough., but we are headed into retirement and thinking of maybe a change of location??

These are my favorite test strips