pinpoint ph meters

[blaster]

The probe is covered in coraline.Can i clean it with something because i think i'm getting false readings.

[christyf5]

Try soaking it in a vinegar solution. That should help.

Christy

[Jason McK]

How old is it? they suggest replacement at 3 months. Not sure of the exact life span if it though.

J

[christyf5]

3 months? Jeez I thought they were good longer than that (although mine did kick off at about 4 months or so ).

Christy

[bluetang]

I was under the imprestion it was once every year and a half to two years. At $60 a pop for a new probe, I'd go broke if i had to replace it every 2 months.