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I'm getting all my friends and family to gather 'em for me. A couple of friends have brought me gallon / 4L jars of caps this summer, and they are endlessly fascinated that the "waste" product they brought me last summer helped me serve them a salad with supper this summer.

In Canada we're metric system as well, but I was born before the switch over so I use a blend of the two systems. As well, I know many of the USA visitors can have troubles with the conversion so I try to talk in both. It makes it easier for everyone and doesn't cost me a lot :)

Oh you are very welcome. Yeah I went through some tough times and my video content creation just got taken out of the priority list. Things are better and I'm wanting to get back to this. The header tank idea is something I got from a community video early on, but everyone was crowing about bell siphons so I never investigated it.

Hope you’re doing better now mate. Looking forward to seeing what you come up with next. I would like to see your thoughts on the U siphon as you seem to have been using them for a while now. Take care

@@ozzypunk1 I'm busy the next couple of days, but I'll post something soon talking about them and my experiences with them. The short version is they are much less fuss than Bells. A few simple design rules and they just work.

Thanks for the suggestions and technical!

That's excellent. You'll find its a bit harder to get lit than the commercial stuff. They stop the bake process early to leave some VOC's in the product. I find Zippo cubes work perfectly for getting it started

More detailed video coming soon on the full system integration. However, the short version is that it's tricky and only marginally worth it in North America where electricity and transport is cheap. On the other hand, if electricity is pricey or grid / transportation access is awkward, then the Trompe begins to make a lot of sense.

@@MichelVaillancourt Can i ask why you'd aerate the water then essentially de-aerate it in the trompe to then add the air back in with a bubbler rather than just using the aerated water that traps the air originally? Is there an efficiency/better aeration achieved with the bubbler?

I'll make a point of showing that in more detail in the next video; thanks for the request. That said, you are right flood and drain is being done by the same pipe. The pump is 900gph or so; at gravity (0 PSI), 2"/50mm SCH40 will carry 2200gph. So I'm only using ½ the capacity of the pipe. When the siphon starts to run, it's generating a couple PSI of pressure. Every PSI is about 55GPH of flow. That means that the siphon is able to out run the pump and the water being dragged out of the grow-beds. A chain of several grow-beds can be managed this way, so long as they are all level to each other and the time it takes to drain them doesn't start crawling past the 10 minute mark. You want those beds to cycle at least 4 times an hour to keep the root zone wet and nutrient rich, as well as providing plenty of food for your beneficial bacteria. Cheers! Let me know if you have any other questions.

@@MichelVaillancourt Kinda figured that was it but cheers for the details.

the only "catch" I find is keeping the lid on the roaster pan. I've had a couple of loads of ash, because wood out side shifted, jarred the lid, and that allowed air inside. I'm likely going to rivet some steel into a "shoe box" that will be easier to keep the lid down on. good luck with your tries!

Much appreciated!

Glad you enjoyed it! Don't forget, you can always watch the stream _after_ it is done, as a "VOD" (video on demand). Everything I've done for the past 2 months is available for viewing as a VOD.

Thanks very much! I'll check out the KFC stuff :)

Totally agreed. The point was to show that regardless of what you'd expect, the water would not flow. The first time I'd done it, I was expecting to have a fountain with at least a 6" / 15cm head on it. Instead it just sat there and dribbled for 2h.

Thanks for the suggestions, Nickaa121212. The biggest problem is that the pipes are too close together. Next year I'll need to nearly double the gap between them. Everything is just too crowded. I'm going to add some Dutch Buckets and a raft trough next year to use up all the available nutrients. The pipes are kind of cool, but I'm finding other problems with them.

No, I haven't. Thank-you for the reminder, it's something I've been wanting to do for a while now. I'll rig some lights and get something posted.

I'd love to. Drop me a PM with when you'll be around!

My pleasure! I'm glad I was able to help you out. Let me know how your own experimenting goes!

Hi there! Thanks for stopping in and messaging! First, I've got a blog series (long, but lots) that talks about what I learned with the system. You can find it at bit.ly/rocketmassheater Second, the system ate itself after 2/3 of the season. I did not know the difference between "splits" and full fire bricks. I was able to get the temps in the burn tunnel and riser over 1000F and 2000F, respectively, and shattered the splits I built the system with. That spring, we had a heap of rats move in, and because I was unable to run the RMH, they used the heat trench as a nuclear bomb shelter. So, the entire system has been disassembled, and I'm going to be rebuilding it this fall and winter as a pebble-fill above-ground box build.

+Chris Klugh - Thanks for stopping by, Chris, and thanks for the kind words. I really appreciate hearing from folks who find my videos useful. Let me know how your build goes, particularly if you wind up using a loop-style like I'm showing here. All the best with your own build, either way!

I'll more then likely be going loop-style. I'm building a shelf system and trying to get the most efficiency out of the space I have. Got a 110L FT, 58L ST, and 2 50L GB. Could not find 1 GB with the dimensions I wanted so I had to go with 2. I do not want 2 bell siphons as that would take up a lot of space so I want a loop style that fits outside the GB that will also act as level equalizer for the 2 tanks so they will fill and drain at the same time. So I recon the 2 GB will be joined together with a T joint and in the middle will be the bottom of my siphon assembly. So with that said, what do you think about the root issues? I'm still not sure how to build a root guard. If I'm putting holes into the bottom, how much space would I really need to 'cup' over the mouth for it to work trouble free you think? Should I build it vertical up the side of both GBs? Or should I build it horizontally along the bottom of the GBs?

Hi, +Greg M.! Thanks for your question. No, I don't need a siphon there. In fact, It's just there for the video as a demo unit. Normally, that is just a gravity-fed over-flow, as you suggest. However, with the fish tank right there, and the sump to dump into, it makes a great "testing rig" for proofing siphon designs. As well, it is right beside the double-doors of the greenhouse, which makes it easy to set the camera up and see what I'm doing. Thanks for stopping by and joining the conversation!

I suck at typing on my phone. email me with questions if this doesn't make sense. I could maybe make a demo video if need be. hope this info helps.