I would think so.

Ray Barkalow - First Rays Orchids - http://www.firstrays.com
www.firstrays.com
Plants, Supplies, Books, Artwork, & Lots of Free Info!

From: keith kent ]
Posted At: Monday, June 08, 2009 5:41 PM
Posted To: rec.gardens.orchids
Conversation: RO water
Subject: RO water

Hi Ray , i may have been misunderstood , the 15 ml feed is a complete
feed of 2-1-4 /trace ,the N added to make it
4-1-4 and Cal & Mg added as a suppliment .I mix all this together in
100 ml of water then gradually add this to 80 lt of rain water to the
required strength depending on time of year then alter the ph between
6.1 -6.9 .
So if this was used with RO should it be o.k ?.
Regards Keith
"Ray B" wrote in message
news:000001c9e879$3f774e00$0200a8c0@fro...
As I use a complete fertilizer formulation, I cannot comment on the
additional stuff needed other than to say "make sure it's complete"
(which those don't seem to be).

If your hydrofogger does not deposit any droplets on your plants, and
you don't mind doing some periodic cleaning, the flush water ought to be
OK. I use RO in mine, because it does and I do.

Ray Barkalow - First Rays Orchids - http://www.firstrays.com
www.firstrays.com
Plants, Supplies, Books, Artwork, & Lots of Free Info!

From: keith kent ]
Posted At: Thursday, June 04, 2009 5:59 PM
Posted To: rec.gardens.orchids
Conversation: RO water
Subject: RO water

Hi Ray , so my regime should fit in ok .
I add 15ml feed, 5ml cal ,5ml sulphate of ammonia ,5 ml mag then add
this gradually to 80 ltrs to get the required strength depending on time
of year.
So no more additives are needed ?
I tested some waste RO water today and the PH was 7.4 and 750 m/sm i was
thinking of using this waste water for my hydrofogger. Good or bad idea
or is it no better than tap water so waste of time using.
Thanks Keith
"Ray B" wrote in message
news:000401c9e3e5$d81fd2f0$0200a8c0@fro...
Keith,
The stuff you do with rainwater is exactly correct with RO water.
Pay particular to the pH and buffering.
Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, & Lots of Free Info!
-----Original Message-----
From: keith kent ]
Posted At: Tuesday, June 02, 2009 5:57 PM
Posted To: rec.gardens.orchids
Conversation: RO water
Subject: RO water
Hi All !
I am concidering a Ro unit ,i have looked at the First Rays info
etc
..I know you can buy ready made fertilizer designed for use with pure
water,but don`t think this type of feed is available in the UK .
I add fertilizer ,and added Mg & Cal to my rain water so would this
suit RO
or is this not enough .
Any input appreciatted.
Regards Keith