Hi everyone, I hope you are all enjoying this rain!
Well, I am in the final stages of building my system am looking forward to more growing space and fewer problems, which brings me to the why I am posting.
In my last system, the by-the-book Chop II system from Murray Hallam gave me plenty of issues, the pump problem I have mentioned in other posts, the system was very high maintenance, the sump was too small and the beds were never coordinated so the sump would overflow or go dry stressing the pumps, there is no filter for the solids so clogging of the pump was a big issue and a few smaller problems.
My new system has two sumps, bigger gravel beds and two raft beds which we have set up but as you all know I am not very experienced in designing the plumbing I am at a loss as to how to go about it. I can make it up as I go but I really would like a system that works better with less problems and maintenance.
If anyone would be willing to help me design it, (I can do the building) I have a greenhouse and can grow anything so maybe we can trade I can grow you some spring seedlings. I also have a huge selection of seeds.
I also have a couple of 1/3 cut up IBC beds I can part with.
Sorry Bob, Paul explained what you were talking about with the 2x4s in the picture the boxes are not finished, we are going to add the top rails when we put on the liner, I think they will be strong enough.
Janet Little said:
I planned on putting in the liners in today, I was concerned about the plywood getting wet and was planning to paint them as well as bringing the liner over the sides. I am using some one inch Styrofoam for insulation and as a soft liner for the rubber liner. The guy who was my inspiration for the boxes (http://urbanfarmfanatic.wordpress.com/2012/07/07/646/) just used the 2x4s for support also and I wondered about the weight, right now we have cinder blocks on the corners but I would feel more comfortable with more support also.
I need to find a lighter medium for the gravel beds, I cant afford clay medium, don't like the feel of the volcanic rock so anyone got any suggestions. Someone said there was a place in McClellan park that had nice gravel like shale? But I cannot find it.
I am not sure what you mean about the fish tank, I am using the old one I had before a full 300 gal. IBC.
Bob Campbell said:
I fear this will not be strong enough. Some cross bracing may help, but those vertical 2x4's may not be strong enough to secure cross bracing to without a horizontal brace at the top.
If you intend to line the boxes be sure to run the liner down over the outside. Otherwise water will find it's way between the OSB and the liner and rot the boxes. But you will first need to beef up the lateral support. Those 2x4's are not enough.
Fiberglass works well for tanks without bulkhead, but it's a lot of work and gets pretty expensive.
I would advise you to use the 1/3 IBC's instead. IBC's accept a Uniseal or bulkhead better than OSB and plywood or OSB will swell and contract causing bulkheads to loosen over time.
Thanks for the pictures, I like the graphics that explain everything clearly. Do you have
a back up air supply in case the pump fails?
Tom Hack said:
The DWC and outlets to the ebb and flow beds.