Quote Originally Posted by alifreddy
I am just about to start my first hydro grow. Will I need an e c metre.

I have found a ph meter for £9 on e bay which I know I'II need

I have also found a 4 socket contator for my 400 hps. WIll I get away with using an ordinary timer switch????????
i use an ordinary timer on my 400 hps it works fine, but some get burnt out at switch on, but then wont turn off..which is not good.
jolly green giant Reviewed by jolly green giant on . ec meters I am just about to start my first hydro grow. Will I need an e c metre. I have found a ph meter for £9 on e bay which I know I'II need I have also found a 4 socket contator for my 400 hps. WIll I get away with using an ordinary timer switch???????? Rating: 5