Distilled/purifier water pH question

Indoor Growing
1

I am currently testing my tap water to see if it is viable but while waiting for that I bought 3 types of water, distilled, purified, and spring water. All 3 are higher ph than 6.5.

Distilled - pH 7.6 TDS 0
Purified - pH 8.0 TDS 0
Spring water - pH 7.6 TDS 170
Tap - pH 7.6 TDS 75

The tap water hasn’t sit for 24 hours yet so we will see how that looks tomorrow but my question is when the bottled water is higher in pH do you simply add pH down until it’s in the range you want or does it having 0 TDS make it safe to use at higher pH?

2

Ph it down

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@Rockminer awesome thanks man. Needed to water with some plain old water but wanted to be sure about pH before I did it lol.

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You can use distilled or RO water without ph’ing. There’s no solids in it to hold a true ph. It will just take on the ph of the medium it’s poured into. Now if you add nutes to the distilled or RO water, it’ll then need to be ph’d as you’ve added enough solids to the Water to hold a true ph.

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You beat me while I was working on the truck. What @BobbyDigital said. :+1::+1::+1:

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@MrPeat @BobbyDigital oops I pH’d it down a bit to be safe but I thought about it after and remembered I hadn’t been doing that before nutes. But hopefully it won’t hurt anything.

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@Vance420 only do pH after I add nutrients to the water. Mine causes my pH to drop down a few whole points. Where I should be adding pH UP then.

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@MrPeat same for me. Mine goes from around 7.0 or 7.5 to 5.5ish after the nutes. I have used a lot of pH up for sure and barely used the pH down. Tonight may have even been the first time I’ve used the down now that I think about it lol.

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