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  #1  
Old 08-27-2015, 12:31 PM
Ashleyma23 Ashleyma23 is offline
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Good results watering with hot water. Female
Default Good results watering with hot water.

I have been watering my orchids with hot water only from the sink and about once every two weeks or when I can remember. This seems to be working for me. I have a dendrobium nobile ( bark, charcoal, perlite ), two cattleyas, brassavola nodosa, zygo, rych - peach) and oncidium sherry baby.

I have seen good results all except the cattleya Redland sunset
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Old 08-27-2015, 01:42 PM
Nana Trish Nana Trish is offline
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Just curious....why would you water with hot water instead of room temperature?
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Old 08-27-2015, 02:24 PM
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Define "hot".
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Old 08-27-2015, 02:36 PM
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Ditto what they said.

Anything above about 80°F is a waste of energy, and much hotter could be damaging to plant tissues.

Let's not forget that "temperature" and "heat" are not the same - I can hold a 1000° piece of foamed silica and not get burned, but a 200° cup of water will, due to the much higher heat capacity of water.
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Old 08-27-2015, 03:34 PM
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I am curious and confused.
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Old 08-27-2015, 05:38 PM
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Idea must be brought to you by the same people that say "water with three ice cubes".
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Old 08-27-2015, 07:57 PM
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I use warm water on mine but make sure its not too hot . I grow phals and it seems to be ok they seem to like it warm.
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Old 08-27-2015, 11:27 PM
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I know people who are absolutely convinced boiling water in ice trays freezes faster than room temperature water in ice trays.
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Old 08-28-2015, 05:14 AM
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Quote:
Originally Posted by estación seca View Post
I know people who are absolutely convinced boiling water in ice trays freezes faster than room temperature water in ice trays.
Well the hotter something is in relation to the ambient temperature around it, the faster the rate of cooling, so............a little knowledge is a dangerous thing!
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Old 08-28-2015, 08:40 AM
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Quote:
Originally Posted by Subrosa View Post
Well the hotter something is in relation to the ambient temperature around it, the faster the rate of cooling, so............a little knowledge is a dangerous thing!
Um, not quite. Water at 99C would take longer to freeze than water at 80C. It's the The Mpemba Effect, named after Erasto Mpemba.

The water only needs to be warm enough so that the surface is kept liquid by convection, while the water freezes solid from the sides in and from the botttom up.



https://en.wikipedia.org/wiki/Mpemba_effect
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