need help with ph!!

my run off is too low. its at 4.9 but the water and nutes in the res is 6.0! can someone tell me is there another way to bring the soil ph back up? can i just add more ph up in the res to raise ph of my soil? any help will be great

wait.. res? soil? im confused.. do soil grows even use "res's" ?

I would take the plants out and flush them from the top with tap water. Tap water is ussually PH'd around 7, just check the PH aftder every couple gallons flushed. Flushing will stunt the plants, so u want to flush the shit out of them for about an hour or two, then let them dry completely for a few days and repeat as needed. Your final flush of the day should be with a 7.0 PH'd high nutrient solution so the plants don't starve during the process.

yeah i grow ebb and flow with 1 gallon pots of soil in a 4x4 tray. ty for the info custom hydro. +rep

I would not flush with tap. (unless you let it sit a few days) If you keep watering it with 6.0 water and nutes over time it will get adjusted. You never want to drastically change ph in soil overnight I would do it overtime so you dont shock the plant.

you can have dirt in your res and its not a big thing? ive heard of some people trying this custom soil ebb and flow thing sounds interesting

i have no idea if the soil in my res hurt anything. the most the happens is the pump gets clogged.

i see, my guess is you would have to keep up on a res change once a week to keep it manageable i grow hydro and soil side by side and i have to be really careful not to cross the two, you could always use some h202 to sterilize but that also kills beneficial bacteria but ive heard people praising it while using it in soil, ill have to try an isolated plant like that sometime because soil taste and ease with disolved oxygen levels of hydro sounds appealing

Use Supernatural Super Leach. Follow the directions and then run at least 5 times the volume of tap water threw the plants. Check the runoff. Add lime to neutralize the soil, it should have been added at the begining befor the plants. Only use a little bit as too much will fry the roots. Don't run a res when you have plants in dirt. Mix fresh nutrients, if you are always feeding them with food you will have issues as the soil holds nutrients, should only be feed fertilizer once a week sometimes every 2, don't over water and feed from the bottom, feeding from the top creates lazy plants and is not really natural, plants feed off of ground water tables in the wild.

im using a soilless mix. sunshine mix #4. i dont know if its all the same someone told me that it is like hydro...