Recycled a/c water is safe for orchids?

Slippertalk Orchid Forum

Help Support Slippertalk Orchid Forum:

Luca69

Active Member
Joined
Mar 9, 2014
Messages
39
Reaction score
0
Location
Rome italy
Dear friends
I have read discordant opinions about use of recycled water from an air conditioner. It's positioned in the greenhouse, so during summer months it produces more than 5 litres of water everyday. It helps me to keep inside temperature under 30 C and a fog system provides to keep right umidity. Usually I use rainwater or r/o to water orchids but during summer I need a lot of water.
What do you think? Can I use to water orchids or just to spray them?



Luca
 

Linus_Cello

Well-Known Member
Joined
Aug 18, 2011
Messages
3,575
Reaction score
254
Location
Washington DC, USA
Someone in my orchid society does this (with central air AC water).
I think dehumidifier water is also ok to use. Dehumidifier manufacturers caution do not use it for vegetables or for drinking purposes, so as long as you're not planning to eat your orchids, I think it should be ok. I think the main concern (at least from a marine aquarium perspective) is any copper that gets leached; but there are some things one can use to deal with trace metals.
 

Ray

Orchid Iconoclast
Staff member
Moderator
Joined
Jun 9, 2006
Messages
3,797
Reaction score
597
Location
Oak Island NC
I've heard of concerns with aluminum toxicity, but have never seen any evidence of it.

Go for it!
 
Last edited:

PaphMadMan

phytomanic
Joined
Feb 12, 2008
Messages
2,052
Reaction score
19
Location
Madison, Wisconsin USA
There can be metal contaminants but if this is 5 liters of water in a greenhouse full of plants it will never reach a problematic level as long as you spread it around and you are using other water sources too.
 

Kawarthapine

Kawarthapine
Joined
Jan 10, 2015
Messages
845
Reaction score
0
Location
Peterborough, On.
I've been using residential dehumifier water every other watering for severl years.

I dilute this water 50:50 with rain or municipal water without any apparent ill affect.
 

TrueNorth

Well-Known Member
Joined
May 30, 2015
Messages
325
Reaction score
41
I have used dehumidifier water on my Den cuthbertsoniis every summer for years and they are very happy.
 

Latest posts

Top