RO waterHi 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