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By That one plant boi
Posts:  680
Joined:  Mon Oct 09, 2017 7:34 pm
#379967
So we're already getting summer temperatures in central Florida (90°F and above for the foreseeable future) which is causing my nepenthes pots to dry out quicker than normal, so I end up having to water them about every other day. I have a reverse osmosis unit, but it takes a while to fill up the cat litter jugs that I use and store, bit I tend to use that water for my sarracenia, dews, and flytraps.

So I was wondering if, since nepenthes are more tolerant of hard water, could I just hose them down during the hot afternoons? I think I've heard that nepenthesaroundthehouse does this, and it works well without harm to their plants. Of course.

So what do you guys think? Also, does anybody else take this approach with their neps?

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By murrkywaters
Posts:  638
Joined:  Wed Sep 02, 2020 2:39 pm
#379969
What is the ppm of your hose water? Does the city have a mineral breakdown listed? If not you should be able to get a list provided you're not on well water.

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By That one plant boi
Posts:  680
Joined:  Mon Oct 09, 2017 7:34 pm
#379977
murrkywaters wrote:What is the ppm of your hose water? Does the city have a mineral breakdown listed? If not you should be able to get a list provided you're not on well water.

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Just tested it and it's around 258ppm... probably too high, eh?

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By optique
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Posts:  1030
Joined:  Fri May 24, 2019 11:15 pm
#379978
I think 200 is the limit. Collect that rain water, I do and my tap is 24ppm
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By murrkywaters
Posts:  638
Joined:  Wed Sep 02, 2020 2:39 pm
#379980
I mean as long as it isn't loaded with calcium, fluorine, Sodium, chlorine, or anything else that might skew the ph it should be ok. I watered mine with 50 ppm water for a while when my filter started dying. My tap water is much too high so I figured it was better than the month or so I didn't water because I was afraid that 50 was too high.

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By murrkywaters
Posts:  638
Joined:  Wed Sep 02, 2020 2:39 pm
#379982
Ope it was @optique that had the 24ppm. I'd see if you could get a Britta tap to pull it down. It might be faster than the RO if you need that much water, alternatively you can see if your grocery store has the 5 gallon ro refill station. I've used that for brewing beer plenty of times

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By Huntsmanshorn
Posts:  637
Joined:  Wed Sep 03, 2014 6:32 am
#379986
That one plant boi wrote:Just tested it and it's around 258ppm... probably too high, eh?
One of the local greenhouses in my area uses tap water to water their Neps but the plants don't seem to mind too much at all and the water in my town is over 350 ppm. They even grew one monster ventrata for over a year, it flowered multiple times (with multiple stalks) and grew to be a real beast before someone finally bought it.
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By optique
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Joined:  Fri May 24, 2019 11:15 pm
#379996
I would test it on like a cape sundew, its possible what ever is running up your TDS is not harmful . The numbers we use to say its safe are worst case anyway.

on my test of my 24ppm tap i kept filling the same trey after like 4-5 months growth slows and even after a year nothing died. At that point i top watered the pot in the sink for about 5min to wash out the peat and the capes started growing.
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By ChefDean
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Joined:  Tue Sep 18, 2018 12:44 am
#385687
Like murk said, we're finding out that it depends less on the total TDS (within reason), than what that TDS is comprised of. Sodium is the biggest baddie, calcium being another significant player. Chlorine will evaporate pretty quickly, and fluoride is probably inert for the plant. Anything that builds up, that may change the PH of the media, or is just generally not good for the plant to be in contact with, is bad.
258 might work, but check with your water department to see about getting a breakdown of the TDS.
However, if it becomes an urgent need, any water is better than no water.
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By MikeB
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Posts:  775
Joined:  Sat Apr 25, 2020 4:13 pm
#385705
That one plant boi wrote: Wed May 05, 2021 12:07 am Just tested it and it's around 258ppm... probably too high, eh?
If you want to stretch your water supply, you could mix 1 part tap water with 1 part RO water. That would knock the PPM down to 129, which should be okay for your Nepenthes.
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By Panman
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Posts:  2095
Joined:  Wed Mar 04, 2020 8:41 pm
#385709
That is what I am doing with my water. I add tap to my 16ppm water until it is about 50ppm.

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