Ph buffer solution preferance

[xcrispi]

But it thought you have to calibrate every 3 times? That means i need to stock up on 8 oz bottles? throw them out after one use?

Hell no bro.
Im so tight I squeak . I pour a tiny ass lil bit in the corner of a sandwich baggy and stick the meter in the baggie . Don't go and contaminate the whole bottle for 1 test .
Peace
Crispi :stoned:

xcrispi Reviewed by xcrispi on 10-09-2007. Ph buffer solution preferance After waiting 3 weeks I just received my ph tester but they didn't ship me any buffer solution and since I'm new to this I didn't even know you needed it. My question is which buffer solution is best. My tester states there are 3 kinds, #4, #7 and #10 which I have no idea what the difference is. I have to order this so I'm hoping someone can give me their input on what is best. Rating: 5