Backyard Aquaponics
A place to discuss aquaponics

re there any nasty cemicals in the marine ply that might leech into water or is it inconsequensial / of no importance

and I'll admit I haven't read all of this yet but what size are your DWC beds?

The glue used in bonding marine and structural grade ply woods is phenol formalderhyde resin which is used in a product called Resocinol. Best results are achieved by heat and pressure curing. While in the liquid state it emits a gas that is carcinogenic.
Structural ply is often much cheaper than marine ply because there is much more produced and marine ply is more likely to be made of selective surfaces for other reasons other than strength.
Although the glue is water proof by design I'm unsure whether any leaching of cured resin occurs.

Pete.

But you haven't noticed any side effects in your plants veges so presume everything is hunky doory.

Hi Tonzz, we didn't notice any ill effects, but also, our rafts weren't touching the water surface either, we had our suspended 20mm (i think) from the surface



Hi Pete, interesting, i didn't know that, cheers!



Hey Charlie! Happy New Year to you and yours too my friend!



Hi Boss, interesting, i will look at that, thanks. In regards to the temps, these seem more temperature tolerant than the rainbows and browns. i was on the phone today with a mate talking about the same thing, his R&Brns are suffering from the past week of hot temps, but mine aren't.

Cheers Mate,

Hi Porter,

Been a while, how have you been?

Regards

..
G'Day Geoff - Gotta get down next year for a visit
Hope all is well..
Same-Same-But-Different up here

Peter