I'm hoping to glean a LOT of useful information from this friendly site!
I found out about Aquaponics from a recent Worm Farming Secrets newsletter and immediately started brainstorming on a system for my back yard. One of my co-workers has been trying to give/sell her 8'x2' stock tank for the last five years. Well, I guess God had her hang onto it long enough for me to acquire it! It's now in place, but I need to coat the entire inside with a good sealant graded for continuous underwater use. I found out that 100% silicone is not good when used on galvanized metal - drying agent is corrosive (could be why there is seepage along the bottom seam where silicone had been previously applied). I'd come across a DAP Auto/Marine sealant that appeared to be what I needed, but, alas, the online info indicates not to use it on galvanized metal...so, I'll be taking the tubes I bought back to Ace.
There's a product out of CA that claims to be non-toxic, rubberized, and fully useful for sealing stock tanks, etc...in fact, there's a YouTube video demonstrating its use on a rusty tank. I'm now looking at using Tucson Rubberized Coating typically used for roofs. Talking with the rep seems to indicate it should be safe.
QUESTION: Is anyone currently using this coating in their tanks? I'd like to do the coating really soon so I can acquire my Tilapia before the weather gets too much cooler.
Thanks! Looking forward to getting to know folks here!
On the first test run of just two tanks, the leak was more prevalent so I dismantled all of them...super wrapped the threads with teflon tape...and put them back in, tightening as far as they would go with a hammer and driving implement. I can just barely access it from underneath and will try tightening them even further. Or, I may just make a collection point for both leaks and run a small pump for a few minutes when I go out in the morning to feed the fishies...or, I may be able to rig a trough that drains it back into the FT...
Thanks for the encouragement, Harold...much appreciated by this rookie!