Go to any hydro or greenhouse shop and get liquid "pH up & pH down"... it is cheap, and more stable than "Home remedies"
HOWEVER is you can not get any right away-- use lemon to lower and baking soda to raise... but as I said-- they are not stable, so not for long-term use.
good luck hun! Keep us posted!
No need for revenge, just sit back and wait.
Those who have hurt you will screw eventually themselves; and if you are lucky, God will let you watch!
Through What we create- we are immortal.