DO NOT USE COPPER ANYWHERE (except wiring!).

[Jollyrancher]

"I suggest you talk to a fertilizer company."

I'm the research director for a very large horticultural corporation. We use copper tubing in our multi-stack NFT systems with all sorts of fertilizers. We have no issues because we got non-treated copper piping.

Try cutting open a piece of your plumbing and check it for etching.

Good for you that you don't have any issues.

Like I said, talk to a fertilizer company, I did.

My system is a hybrid DWC/aeroponic

Jollyrancher Reviewed by Jollyrancher on 08-13-2010. DO NOT USE COPPER ANYWHERE (except wiring!). If you are, the copper can and will react with the fertilizer and will kill your plants. :mad: (I thought I was upgrading the plumbing too!) It took a few months for me to find the cause, but I found it. :thumbsup: Killed a nice strain of WW . :( Rating: 5