texastiger707
Active Member
I just tested my city tap water and its PH is like 8.0. I was wanting to know if someone could tell me how much PH down should I use to lower the PH for 1 gallon of water? If possible.
how much PH down should I use?
- Thread starter texastiger707
- Start date
5 drops...stir it.. Then test it again. I usually end up using 7 drops of PH down to get it to 5.7.. Our tap water is 8.0 as well.
sorry forgot to mention....I usually boil my water first ..let it cool..then test the ph and make adjustments before putting the water into my system to be on the safe side.
sorry forgot to mention....I usually boil my water first ..let it cool..then test the ph and make adjustments before putting the water into my system to be on the safe side.
texastiger707
Active Member
thank you very much. so 5 drops with just water. do you add your nutes then test it? I am using happy frog soil if it makes a difference. I am using fox farm trio for nutes.
texastiger707
Active Member
ok thank you for your reply. happy new year
texastiger707
Active Member
ok so boil my water 1st. then test it. after I boil it and let it cool. should I test it or add my nutes then test it?
Boiling the water is just what "I" do, do not think it is 100% necessary though. You could add the nutes right away (if you are using it all at once) then test it...however even with the nutes I would still start off with 5 drops, then add 2 drops at a time till I get the desired PH level.
texastiger707
Active Member
ok got it. thank you again. have a great safe new year.
jondamon
Well-Known Member
IMO pH adjusters, ie pH up and pH down, should NEVER be added neat into water with nutes.
The reason for this is that at the point of delivery of the raw pH up/down the nutes can hit very low pH numbers causing them to become locked out.
Whenever adjusting pH using UP/DOWN I mix the UP/DOWN at 5ml per 500ml of plain water and adjust gradually. This allows a more controlled adjustment.
If the nutes your adjusting for instance happen to go as low as pH4 then certain elements will be locked out that cannot be brought back by correcting the pH. So if you go too low you have to remix your whole batch with new water.
ALL pH up and down products are different concentrations. You need to find what works best for you with your products. IME never add raw up or down to any premixed nute mix.
J
The reason for this is that at the point of delivery of the raw pH up/down the nutes can hit very low pH numbers causing them to become locked out.
Whenever adjusting pH using UP/DOWN I mix the UP/DOWN at 5ml per 500ml of plain water and adjust gradually. This allows a more controlled adjustment.
If the nutes your adjusting for instance happen to go as low as pH4 then certain elements will be locked out that cannot be brought back by correcting the pH. So if you go too low you have to remix your whole batch with new water.
ALL pH up and down products are different concentrations. You need to find what works best for you with your products. IME never add raw up or down to any premixed nute mix.
J
Dobby
Well-Known Member
Don't assume your water is always the same pH either. If you get water from a tap that is seldom used you pH can be substantially lower. I had this happen with well water and it is due to water sitting in the copper pipes.
BTW, Chlorine can be neutralized by sunlight too, the UV will do it.
BTW, Chlorine can be neutralized by sunlight too, the UV will do it.
younghydro
Member
boiling water??- never heard of that.... save time and hustle and by yourself RO filter ..... its only 200$... i just dont see myself boiling 150 gallons of water every flush... ( i flush my system every 7 days).....