Egmel
Member
I bought a stainless steel diffuser off ebay a couple of weeks back thinking it would be the answer to me breaking so many glass ones. It arrived and was lovely, looked good, ok quality and the replaceable ceramic discs were a plus!
I got it all installed and it produced beautiful little bubbles with no co2 escaping from the threads or anything, I was very pleased.
2 nights go by and in the morning I'm looking at an airline tube full of rusty water It was whipped out before the CO2 kicked in and I've not had any losses so no harm done.
I think there's a part which is either substandard stainless, or which can't cope with the acidic nature of the water/CO2 found in the diffuser. I've contacted the seller who took a while to believe me that it was rusting but who has offered me a refund.
So if you're thinking of getting one of these, they're probably great for 24/7 CO2 but I wouldn't recommend them for daylight hours people like me.
PDF with pics -> http://personal.ee.surrey.ac.uk/Personal/H.Cooper/RustingDiffuser.pdf
I got it all installed and it produced beautiful little bubbles with no co2 escaping from the threads or anything, I was very pleased.
2 nights go by and in the morning I'm looking at an airline tube full of rusty water It was whipped out before the CO2 kicked in and I've not had any losses so no harm done.
I think there's a part which is either substandard stainless, or which can't cope with the acidic nature of the water/CO2 found in the diffuser. I've contacted the seller who took a while to believe me that it was rusting but who has offered me a refund.
So if you're thinking of getting one of these, they're probably great for 24/7 CO2 but I wouldn't recommend them for daylight hours people like me.
PDF with pics -> http://personal.ee.surrey.ac.uk/Personal/H.Cooper/RustingDiffuser.pdf