420Gator
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First, let that RO water sit out for at least a day. I don't (yet) know why, but when it comes out of the unit it's a pretty low pH. Then it comes up to just under 7 (my experience/unit), usually stabilizing around 6.8. When it comes out it's as low as 4.8.how am i suppose to adjust water that doesnt have anything in it? seems like the ph is unstable, all over the place. Ive been adding like 50 ppm of tigerbloom to help stabalize before adding ph adjustments. is there a better way?? Im using RO which doesnt seem as bad as distilled but pissing me off when i add a drop of up and it goes down by 0.1 so i add two drops and it goes up 2.1
:mad0233:
Generally, you will find that the pH from a RO system reads around 6 to 6.5 if you measure the ph of reverse osmosis (RO) water directly. All it takes is a minute measure of additive or impurity to make a large value difference, although this might seem like a problem, this is not an issue of pH measurements of water which is pure and means very little, to be adding something with such a low pH to an aquarium reef. Carbon dioxide is the most influential element as it adjusts the pH to a region of six when left for a good amount of time while the pH is allowed to rise and reach its equilibrium. As it only takes a small additive to change the pH of pure water as it has an extremely low alkalinity that is a sure measure of how well water will resist the change of pH. As a result, it is easier to change the pH with an alkalinity that is lower. Since the alkalinity is so much, lower and will not affect the pH of an aquarium’s reef water. Therefore, adding low ph water to your aquarium’s reef water is not a concern, you will not be endangering the ecosystem you have already provided for you aquarium’s reef life or fish. Understanding that using a lower alkalinity of pH to your aquarium’s reef water should allow you more comfort in knowing the water of your aquarium’s reef is safe.
Also, letting RO water sit will do nothing.
i have a float switch and a 50 gal res that stays full of RO water and will sit for days or sometimes even a week before i touch it and i see none of this as a benefit in my experience. weather it comes fresh from the ro or sat for a week my ph seems to be about the same. if you're ph is adjusting sitting out over night (uncovered?) maybe airborne sediments are landing in it or residue in your storage container are contaminating your ro water (contamination first but the word is really overkill) and adjusts your ph. idk just never worked that way for me and i've been through at least 1,000 gallons of RO water in the last 5 months.
I agree with Xceptional. But I'm willing to hear why we may be wrong? Do you know what is happening to the water during this time? Just doesn't make sense to me.
i have a float switch and a 50 gal res that stays full of RO water and will sit for days or sometimes even a week before i touch it and i see none of this as a benefit in my experience. weather it comes fresh from the ro or sat for a week my ph seems to be about the same. if you're ph is adjusting sitting out over night (uncovered?) maybe airborne sediments are landing in it or residue in your storage container are contaminating your ro water (contamination first but the word is really overkill) and adjusts your ph. idk just never worked that way for me and i've been through at least 1,000 gallons of RO water in the last 5 months.
regardless nothing will make it easier to adjust the ph where it does not swing one way or the other drastically but a buffer! if it's pure water and it sits for a year and is still pure water you wll still have that issue. this is why your flushing water needs less ph up/down solution to move 1 point then your water with say 800ppm nutrients needs. which may be double the amount or more.
Hey X, don't we both have RO/DI units from Pure Water Club? My RO/DI water always comes up in pH as it sits out, like G,ro says. Never higher than a 6.8 so far, but that's fine for my uses.i have a float switch and a 50 gal res that stays full of RO water and will sit for days or sometimes even a week before i touch it and i see none of this as a benefit in my experience. weather it comes fresh from the ro or sat for a week my ph seems to be about the same. if you're ph is adjusting sitting out over night (uncovered?) maybe airborne sediments are landing in it or residue in your storage container are contaminating your ro water (contamination first but the word is really overkill) and adjusts your ph. idk just never worked that way for me and i've been through at least 1,000 gallons of RO water in the last 5 months.
regardless nothing will make it easier to adjust the ph where it does not swing one way or the other drastically but a buffer! if it's pure water and it sits for a year and is still pure water you wll still have that issue. this is why your flushing water needs less ph up/down solution to move 1 point then your water with say 800ppm nutrients needs. which may be double the amount or more.
This is my experience and observation, and if my record-keeping skills are good enough for the likes of large public aquariums, then I think it's safe to say that they're good enough for Mary. I have considered a few answers as to why, but without other testing equipment it's all guessing.hey Sirus,what's up?
my water goes to 7.0 after a day but initialy comes out much lower.no CO2 in the work area and holding drums are sealed.
have you tested your ro right when it is first filtered?
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