Ammonium Sulfate

[gotmeabigwave]

Could you please advise a PH Calibration mix of home products that one can put together..Just got the unit, and would like to make sure its right on..
Thanks.

Not sure here...what is it that you are trying to accomplish? I believe that ph scale is from 1 up to 14 with 1 being acidic and 14 being base. :thumbsup:

[gotmeabigwave]

Tomatoes, yay!
I'll betcha you planted a determinate variety. They grow to a certain height, produce a single crop, and die. This is normal.
.

I planted seeds from the Romano variety. I have no idea what they are supposed to do although I think I do still have the seed packet so I might have to just go and take a look see. I was hoping to have some nice plump luschous toms. I am going to remain hopful.

[stinkyattic]

Not sure here...what is it that you are trying to accomplish? I believe that ph scale is from 1 up to 14 with 1 being acidic and 14 being base. :thumbsup:

What treetops is asking is whether there is a substance that you can find in your home that you can use to check whether your pH meter is functioning properly.

And you must have been paying attention in class! ; )