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Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Mon May 04, 2020 3:47 am
by MikeB
Clayton, North Carolina, USA (20 miles southeast of Raleigh)

Tap water: 150 PPM (pulled from the Neuse River, has a lower PPM after a heavy rain)

Rainwater collected from an asphalt-shingled roof: 8 PPM

The roof is my main source of water. I have two 80-gallon rain barrels plus 60 one-gallon jugs.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Wed May 06, 2020 8:06 pm
by ChefDean
I just got my TDS meter and had to try a bunch of different waters. Here we go.

Location: Clarksville Tennessee
Tap, right after opening the faucet: 112 PPM. Not optimal, but I could use it in an emergency.
Tap, hot, after allowed to run to bring hot water to the faucet: 150 PPM. Not going to use that.
Tap, cold, allowed to run to flush the pipes: 101 PPM. I can use that if necessary.
Filtered from the fridge: 96 PPM. Better, TDS going down.
Tap, run through a Brita filter pitcher: 46 PPM. Now we're getting somewhere.
However, filtered fridge run through the Brita filter: 76 PPM. Interesting.
Rain water, collected in a bowl, 10 feet away from the house: 7 PPM. Yup, still going to use that.
Lastly, distilled: 0 PPM. Of course it is.
The initial Brita water had been sitting in the fridge a couple of days, maybe the temperature, 37°F, or time being allowed to "settle" had an effect.
I'm going to have to try some other combinations of water to see if I can reliably bring it down to make sure it's safe to use.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Sun Dec 06, 2020 5:49 am
by ManFromAnAntiqueLand
Denver, CO.

Tap - 150-225 depending on the seasons mostly. Worse in the summer. Better in the winter with snow melt. Water is from snow melt that accumulates in reservoirs.
Fridge filter tap - Usually 10-20 less than tap. Not great.
RO Buddie - 6. This is what I use :D

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Tue Dec 08, 2020 4:27 am
by hungry carnivores
Bay Area, CA.

Tap - Prefiltered 22ppm, With carbon filter 12ppm.
Fridge - ~5ppm (This goes through carbon filter)
Brita - 3-4 ppm

In the winter, these numbers jump to 50 or so which is still doable but it rains enough to collect rain during this period.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Tue Dec 08, 2020 1:18 pm
by Panman
South Atlanta, GA

Tap - 72ppm from a well
Dehumidifier - 0ppm

I have been using tap water at 72ppm for all of my plants for years without problem. That being said, They are all outdoors and are regularly flushed with rainwater so that may be to my advantage. I've recently started using water from the dehumidifier and it has been working well.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Mon Mar 08, 2021 11:37 pm
by marmotamonax
Berea,KY

TDS of tap water 92
TDS of Rain Water 4

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Sat Mar 13, 2021 9:29 pm
by eriction
Queens, New York

Tap water
2016 - 2021 : TDS : 35-40

TDS has been consistent for me past 5 years.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Fri Oct 01, 2021 4:51 pm
by davinstewart
Chapel Hill, NC

Tap Water: 150ppm, 8.9 pH
R/O Bottled Water: 4ppm, 6.3 pH
Backyard Pond Water: 75ppm, 6.5 pH

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Sat Oct 02, 2021 2:43 am
by thepitchergrower
Mission Area CA: 159 ppm

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Fri Jun 03, 2022 2:04 pm
by Intheswamp
Crenshaw County, south central Alabama
Personally tested TDS, Quint-Mar Water Authority tap water- 325ppm
Official annual report 2021(Quint-Mar) tap water - 143-455ppm (multiple wells)
Rainwater (metal roof) - 0-2ppm range.

The county sits above a large limestone aquifer.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Fri Jan 06, 2023 12:27 am
by Jeanette56
Uvalde County, Texas
Spring fed well water - 249 ppm
New, 5 stage ZERO water pitcher - 0 ppm

It will be interesting to see how often we have to change filters on the ZERO unit but it will sure cut down on buying plastic jugs of water for the coffee maker, the Keurig, and the CPs. Our water tastes good but the hard water buildup on our appliances is tough on them. We go through a lot of vinegar!

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Sat Jan 21, 2023 4:42 pm
by Gary
Prescott, AZ tap water - 125 to 140 ppm. Not too bad.
We get our water from a local reservoir. I got a Zero Water system, it gives 0 ppm water. I get about 30 gallons from each filter. When the water gets up to 6-7 ppm it starts smelling "fishy". Since we use it for drinking as well, I have to change it even though the plants wouldn't mind the odor. Considering getting a second unit just for the plants so I can use the filter until it completely blinds up.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Sat Jan 21, 2023 7:21 pm
by davinstewart
Quick reminder for everyone to please document the temperature of the water as well since TDS meters are very sensitive to temperature.

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Mon Jan 23, 2023 11:46 pm
by Intheswamp
davinstewart wrote: Sat Jan 21, 2023 7:21 pm Quick reminder for everyone to please document the temperature of the water as well since TDS meters are very sensitive to temperature.
Thought I'd insert a link to a post I just made regarding temperature while testing...
topic56799.html#p429141

Re: TDS (total dissolved solids) of Water in Various Locations

Posted: Wed Jan 25, 2023 9:56 pm
by wcrosman
Longmont, CO
Home 51
Rain 0
Temps around 50ish

Cheap Chinese meter
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