How to use pH up and down?

asdewqasdfgh

Active Member

• Nov 12, 2011

• #1

I just got my general hydroponics ph up and down kit in the mail. how do i adjust the ph of my soil with it?

 

blimey

Active Member

• Nov 12, 2011

• #2

You use it to adjust the ph of your water and that adjusts the ph of your soil.

 

asdewqasdfgh

Active Member

• Nov 12, 2011

• #3

right, but i mean do i adjust my water to 7.0, then water them, then test the ph of the runnoff. if so, how much up/down do i add if its too low/high. i kinda need steps.

 

blimey

Active Member

• Nov 12, 2011

• #4

1. Measure the ph of your water.
2a. If your water ph is above your designated ph. Use ph down until it is in the acceptable range.
2b. If your water ph is below your designated ph. Use ph up until it is in the desired range.
3. Water your plant with the adjusted water.

 

asdewqasdfgh

Active Member

• Nov 12, 2011

• #5

ok so i water the plants with the ph that i want my soil. GOTCHA THANKS MAN! +rep

 

W

Wetdog

Well-Known Member

• Nov 12, 2011

• #6

pHing your water or nutes will only affect your soils pH on a VERY temporary basis. It does nothing in the long term for soil pH.

You can add dolomite lime to your soil and get the pH in the proper range.

Or, you can play with your pH up and down and test strips or meter.

Your call.

Wet

 

blimey

Active Member

• Nov 12, 2011

• #7

I'm using Fox Farms Ocean Forest should I add it? It has oyster shells in it that it says are for ph.

 

W

Wetdog

Well-Known Member

• Nov 12, 2011

• #8

blimey said:

I'm using Fox Farms Ocean Forest should I add it? It has oyster shells in it that it says are for ph.

Click to expand...

That oyster shell flour seems to last about 6 weeks and then is depleted. They pretty much add just enough to put on the label, but nowhere enough for an entire grow.

Get the lime and use the lime. 2tbl/gallon of mix, or 1cup/cf of mix. Best if added before use, but you can top dress if the plants are already in their final homes.

~$5 for a 40lb bag at Lowes.

Wet

 

asdewqasdfgh

Active Member

• Nov 13, 2011

• #9

thanks for the info man. I will def. pick some up for my next grow.