MartyMcFly

OK...Went and bought a $80.00 PH meter from a hydro store on the other side of the state. No not cause i wanted to drive that far but cause it was the closest one.

The problem is that once I got to the place I was so nervous about the place being run by Po Po's that I quickly bought everything i thought I needed. Well I get home 3 hours later and realize that i have nothing to calibrate the PH meter with. The guy who sold it to me said it should be calibrated already but I soon realized that in order for it to be accurate a month or two from now I need some solutions which are exactly the PH that it says they are.

So does anyone know how I can get some solutions to test it with short of driving back to the store? Or any way to be 100% sure it is calibrated???

HydroSan

Distilled water should be pH neutral, 7.0, I wouldn't trust store bought though, I expect the consumer rules are well lax and say it must be 95% pure or something for labeling purposes

making your own shouldn't be too difficult, specially if you have still experiance

Tho obviously the recomended solution would be better, specailly as some manufacturers recomend two different pH standards

San

MartyMcFly

Doesnt anyone know of anything else that can be used to calibrate ph? There has got to be some things out there that can be bought at a drug store or grocery store that could be used for the same purpose...

Dr DragonFly

Hey McFry.....
If you bought an $80 meter it must be a decent one. I'd protect your investment and try and get some calibration solution via ebay or a hydro store mail order. Why subject that sensative meter to someones homemaid soup?

Also if you are in the states and buy distilled water from Wally-mart, I've found it to be 5.2

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