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Tyler Bullock
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Sorry at work....lol........I will be going with the HI774 model.
Hanna P04 Testing
- Thread starter Tyler Bullock
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infinite0180
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Awesome! You will be pleased. I was going back and forth for a few days. Someone else had a thread going like this and i was following along. It made the most sence for the way i run my tank to get the newest model.
cracker
5000 Club Member
Does your tester give you more than 3 minutes to mix the regent ?
infinite0180
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Yes! The new HI774 allows you 8 minutes of inactivity before it turns off. I still try to hurry though as your suppossed to have the actual test run 5 minutes after adding the reagent. So 2 minutes of shaking and 3 minutes of sitting in the checker on the timer... but it gives you more time to add it after you zero the checker out...
Ferrell
Valuable Member
If you’re having trouble with the packaging and pouring you should watch the @Hanna Instruments video on how to cut the packaging and use it as your funnel. All very easy. Good luckI have H17774. I honestly don't care for it, but again, I doubt I'd like the newer one either. IMHO, if your setup requires a strict, ultra low phosphate range.. like .02 - .05, you might try the newer model. The 1774 technically reads in that range, but seems to easily vary .03 or so in either direction. I've only used Hanna for phosphate, so I have no point of comparison.
They're not easy to use though. Aside from having to maintain the vials in pristine condition with lots of wiping and polishing, you also have to get the reagents out of a stiff, hard to open, hard to empty foil envelope into a 1/4" mouth of a vial. Typically, I'm kneeling on the floor with a moist cloth, a folded post-it note to funnel the reagents, with the vial face-level on a table. I imagine they're very accurate, but they're not easy
