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  #11  
Old 07-18-2017, 12:38 PM
Dollythehun Dollythehun is offline
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Goldstar, what are you drinking? We plumbed the house so that our drinking water (cold) in the kitchen, is not softened. Perhaps my knowledge is out of date but, we were told soft water wasn't good for drinking health wise. Our cold drinking water then is filtered through a Pur faucet mount and the orchid water through a pitcher system or rainwater.
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  #12  
Old 07-18-2017, 01:00 PM
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Dolly -
Softened water just has a a bit of sodium. How much depends on how much calcium it replaced. Sodium is one of those things that we all probably get too much of. But how much is that in the water adding to total dietary load? Probably a LOT less than what comes out of the salt shaker to say nothing of processed food. If one were on a very restricted-sodium diet, drinking softened water might be an issue, but otherwise I suspect the hazard is overblown. Do you know what that pur filter is actually taking out of your water? (Like test before and after?) Looked it up, some of what it supposedly takes out may not be there in the first place, or may be quite innocent if it is is. Not going to touch the majors like calcium - to take those out with a "filter" requires a DI system. Goldstar mentioned having RO water available... the issue was just that it was so pure that possibly regular fertilizer could be an issue. Simple solution to that problem is just add back a few minerals from the outdoor (unsoftened) water and the fertilizer on hand is just fine.
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  #13  
Old 07-18-2017, 01:14 PM
Dollythehun Dollythehun is offline
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Understood, Roberta. Nevertheless, we are cautious. Our water tastes better through the Pur. And, I notice long haul that it also (iron perhaps) hindered the uptake of minerals to my ancient phals.

I have to laugh, I remember when we drank from the hose...
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  #14  
Old 07-18-2017, 01:54 PM
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Quote:
Originally Posted by Dollythehun View Post
Understood, Roberta. Nevertheless, we are cautious. Our water tastes better through the Pur. And, I notice long haul that it also (iron perhaps) hindered the uptake of minerals to my ancient phals.

I have to laugh, I remember when we drank from the hose...
The pitcher system is probably DI (like ZeroWater) so that does take the minerals out. As for the hose... probably a bit chalky but otherwise fine. Calcium is good for you... what comes out of the hose is likely to be quite OK if your water provider just follows the rules and regulations. (In Flint, MI they didn't...)
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Old 07-18-2017, 02:25 PM
Dollythehun Dollythehun is offline
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Zero water filter life is only a few gallons (according to them Indiana has the nation's hardest water). My source is 100 feet down. 😁 Our water tests around 200 TDS. My reference to the hose was from being a farm girl. Nowdays not all hoses are rated as safe for drinking water. I apologize for hijacking Goldstar's thread.
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  #16  
Old 07-18-2017, 06:15 PM
Orchid Whisperer Orchid Whisperer is offline
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Quote:
Originally Posted by GoldStar135 View Post
Hi everyone-
I have a little problem regarding fertilizer. My house uses water from a well, and therefore our water system relies on a water softener. I've been using the outdoor faucets because they bypass the softener, but however recently I found out that the water coming from the faucet is around 600ppm. With fertilizer (Miracle Gro orchid food) it's around 700ppm. Am I right in assuming that that amount is way too high for orchids? I have been seeing salt burns in the velamen of my phals.
I do have an RO system installed (9ppm), but I've hesitated in using it with my current fertilizer after learning that using fertilizer likely intended for tap water mixed with RO water could result in pH problems. I'm thinking of getting MSU fert for RO water, but that'll leave a bag of fertilizer left to waste. Is there any way I can make use of the unused fertilizer?
With some experimenting you could probably blend your well and RO water (with and without fertilizer) to achieve the TDS you want to apply to your plants.
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Old 07-18-2017, 08:18 PM
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Quote:
Originally Posted by Dollythehun View Post
Zero water filter life is only a few gallons (according to them Indiana has the nation's hardest water). My source is 100 feet down. 😁 Our water tests around 200 TDS. My reference to the hose was from being a farm girl. Nowdays not all hoses are rated as safe for drinking water. I apologize for hijacking Goldstar's thread.
I would not try to remove minerals from 200PPM water before drinking. The vast majority of calcium humans consume comes from drinking and cooking water. Drinking reverse-osmosis bottled water is not healthful.
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  #18  
Old 07-19-2017, 09:26 AM
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The amount of residual sodium in softened water is mostly determined by the "tuning" of the backflush of the resin bed, and most overcompensate, so tend to have small, elevated levels versus the original water supply.

Carbon filters extract organics. RO & DI take out minerals.

In my opinion, RO or DI water both taste terrible without the dissolved minerals, but there is no evidence that there is harm in consuming them.

I have heard folks say they "extract nutrients from the body", but that's pure BS.
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  #19  
Old 07-19-2017, 09:40 AM
GoldStar135 GoldStar135 is offline
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Originally Posted by Roberta View Post
Absolutely the unsoftened outside water. Don't use softened water on ANY plants. You can easily get an inexpensive TDS meter online, or at a hydroponics store (I suspect easier to find where I live than where you are) But for just a few orchids, don't stress on it. It takes very little for it to manage any acidity with fertilizer. A cup a gallon should be fine. (that's 1:16, so whatever the TDS is to start with, you end up with 1/16th as much, then you add in your fertilizer and go for it)

I have a TDS meter-just bought it a few weeks ago
I tested the tap water from multiple outdoor faucets and received results around 580-610ppm.

Quote:
Originally Posted by Dollythehun View Post
Goldstar, what are you drinking? We plumbed the house so that our drinking water (cold) in the kitchen, is not softened. Perhaps my knowledge is out of date but, we were told soft water wasn't good for drinking health wise. Our cold drinking water then is filtered through a Pur faucet mount and the orchid water through a pitcher system or rainwater.
We mostly just buy bottled water from the store, but we have a jar of RO water that we drink from as well.

Quote:
Originally Posted by Dollythehun View Post
Zero water filter life is only a few gallons (according to them Indiana has the nation's hardest water). My source is 100 feet down. 😁 Our water tests around 200 TDS. My reference to the hose was from being a farm girl. Nowdays not all hoses are rated as safe for drinking water. I apologize for hijacking Goldstar's thread.
No need to apologize. Personally I love it when people hijack threads-it keeps things interesting/fun


Quote:
Originally Posted by Orchid Whisperer View Post
With some experimenting you could probably blend your well and RO water (with and without fertilizer) to achieve the TDS you want to apply to your plants.
That's what I think I'll do. Thank you all!

Last edited by GoldStar135; 07-19-2017 at 09:44 AM..
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  #20  
Old 08-01-2017, 08:19 PM
GoldStar135 GoldStar135 is offline
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Hello again-
Is there a max amount of TDS that an orchid can tolerate reasonably? Around 200-300ppm?

My current fert solution consists of around 63 tbsp in a gallon can mixed with RO water (around 143ppm). With about half a teaspoon of fert the TDS showed up at around 171ppm. Would that be okay to apply to my plants? I watered one phal with the solution yesterday and today it seems normal (aside from a few small brown marks on the newest roots).
Quote:
Originally Posted by Roberta View Post
But for just a few orchids, don't stress on it. It takes very little for it to manage any acidity with fertilizer. A cup a gallon should be fine. (that's 1:16, so whatever the TDS is to start with, you end up with 1/16th as much, then you add in your fertilizer and go for it)
I did mix up a solution with about a cup of well water+RO water-it measured around 48ppm (close enough to 1/16 of 600ppm(37.5)). I'm just a little paranoid about the pH situation and felt that it wasn't enough well water mixed in with the RO water.

Thanks in advance

Last edited by GoldStar135; 08-01-2017 at 08:25 PM..
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