Lf calibration fluid for ph prob

[Davidbugera]

As it says

[mrhasan]

Originally Posted by Davidbugera

As it says

I have a bottle of 4.0pH that I no longer use (my pH pen got busted). If you want, you can have it.

[Davidbugera]

The Manuel says to use a ph of 7.0 and 10.0 to calibrate I'm new to the apex so not sure if it would work but thank u for the reply

[mrhasan]

Originally Posted by Davidbugera

The Manuel says to use a ph of 7.0 and 10.0 to calibrate I'm new to the apex so not sure if it would work but thank u for the reply

Since the manual says that, you should follow it I guess. You can grab small packs of powders from LFS that you have to mix with specific amount of RO/DI water.

[cale262]

Most stores carry the 7 & 10 calibration solutions for only a couple bucks. If you have a ph test kit you could make your own solutions but its a pita.

[Madreefer]

Or better yet go to a hydroponic store and grab a bottle of each fluid for under $5/bottle. Much cheaper than the one use packages they sell at LFS

[Davidbugera]

Now that I no most lfs carry the powders ill pick some up thanks