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#1
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PO4/NO3/Alk/CA
Once u find out u r color blind in yellow/green spectrum using chemical tests not so reliable. Thank you
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Cheers Gary 604-319-0317 |
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#2
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yea I just switched to alk hanna checkers, gives me very accurate number and I love my po4 hanna as well very realible.
Sent from my iPhone using Tapatalk |
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#3
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I think jl is going to start selling them soon
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#4
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I have some collecting dust. Pm me if intersted.
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#5
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buy them from their site-you can also get large packs of regents
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#6
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my results from the ULR tester vary wildly. i'll do 3 tests one after the other and have no idea which to trust. makes a great paperweight.
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