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Discussion Starter · #5 ·
ebay has one that is aroound 10$ (I dont trust it)
but there is also one around 20$ thats made for pools, to test ph and chlorine
I figure the second one could be really useful during water changes to make sure no chlorine and that I have the right ph because I use IAL

I dont think I can link ebay on here but I can copy paste the description for more infor if needed

its called "Home Swimming Pool Water pH / CL2 Tester"
you think its worth it?
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