Can you use Black Soldier Fly (BSF) indoors for toilet??

hey! this is an odd question and i understand that it may not be practical but the thought experiment is rolling around the back of my brain and i was hoping to get the opinion of someone who knows more about the topic than i do.

so i have heard of folks using BSF in their summertime outdoor toilet systems to keep waste from piling up at festivals and such, or i saw one guy was transferring their own waste to their outdoor bin, but what really intrigues me is the idea of managing a fully indoor bin where human waste is deposited directly into the bin. i understand that you would have to manage a rotating breeding population of adults in some sort of enclosure indoors as well to continuously repopulate the bin in the winter, or have a gateway to the outdoors for adults to access the pod and lay eggs but it still seems like the reward of not having to empty your composting toilet every week and getting a small harvest of pupae all year round from a waste stream that otherwise doesn’t really get utilized might be worth the effort.

is there some reason that this system would definitely not work? the indoor temperature of the house could be kept 70+ degrees and the bin would create a bit of its own warmth to my understanding, and i have seen people make small breeding enclosures out of mesh to collect eggs indoors. i would assume a small pod like those commercially available that are fully enclosed and have a ramp for harvesting grubs could potentially handle the solid waste from four people, and you would need to devise a urine diverter much like our current compost toilet has. inquiring minds want to know, and folks who have to empty their compost toilets weekly want to find an alternative.  

I think this is feasible, but I would look at it like a two part system. One breeding "egg gathering" containment, and then the actual larvae feeding feces container. Use banded together corrugated cardboard to continue to gather eggs and place them in the bin, harvest a handful of larvae after they pupate and put them into the "egg gathering" area to hatch, breed, and make more eggs. With how much they eat, I would guess that a 30 gallon tote would be about the size needed for 4 people, but you may have to do a little reading up on that and adjust. I know when my bins are full and rocking in the summer time, they can really go through some material. One thing to try to figure out would be the smell though. BSF larvae don't really care for sawdust or other woody materials that are traditionally used to cover and dry out feces. Maybe some dried coffee grounds would act similar and also help cover the stench, but that would also contribute to your food load on the maggots. Depending on size that could be good or bad, but it would be something most would need to source in that quantity. If you give it a go, keep us informed!

that’s all great info and i was actually thinking about coffee grounds as a substrate/cover. the smell is something i wondered about because i haven’t raised the BSF before and i have no idea how they smell. i thought about using a pod like this https://www.protapodusa.com/biopod-plus.html but it sounds like this would be quite a bit too small so i am curious what other kind of containment might work well and how to make the system self harvesting. and how to arrange the seat and urine diversion. i guess my main question for those in the know would be 1. would this be downright too stinky to attempt indoors? 2. could you keep a breeding population in a mesh enclosure in the house and how hard would that be? 3. would normal house temps be high enough to keep the colony happy? 4. if it is a year round system how do you clean out their waste periodically without destroying the grubs? maybe use a traditional composting toilet for a period of time and keep some grubs in a cool place to eventually repopulate and let the grubs cycle out of the system without replacing them with eggs and then empty and refresh?  i will definitely document it if we decide to try this out!!

Seems feasible since they could eat a small bit, but you’d want to have the ramp where the larvae crawl out likely outside or something.  This makes good chicken feed opportunity if you catch them, or just let them out to make more bsf.  

What makes this possible is that they hate humans, and so might not be an issue if it’s built right….. just could see one flying up at a very bad time

A bright idea that could be actualized,  best of luck.

For this effort.  

"So i am curious what other kind of containment might work well and how to make the system self harvesting. and how to arrange the seat and urine diversion. i guess my main question for those
in the know would be 1. would this be downright too stinky to attempt indoors? ......."

...I think you might use a compost bucket system with largish (1/2 inch?)  holes underneath (similar to Paul Wheaton black fly larva feeder for chickens).
For our chickens, that was close to self feeding.  Ask others please about size of drilled holes

My bins don't smell bad, but they are outside and i will put anything in them. Chicken carcasses, squirrel and deer offal, spoiled meat, etc. If you wanted to give it a try indoors, just get a geriatric potty seat that would normally sit over a toilet, and put a tote or bin in your bathroom and give it a shot. You'll know soon how bad the smell is. As for harvesting, this will depend heavily on where your bin is located within the house, but in general, mine are self harvesting. They climb up a ramp in the bin and ride down a shoot made of 1 1/2" PVC pipe to a collection bucket. You could do this easily if your bin is at least 18 inches tall like a normal Rubbermaid tote, just make your ramp up to the top of it, and then the shoot would run to a collecting container at floor level. They can't climb very well as long as the bin is dry. I think normal house temps would be just fine, as long as you aren't keeping it like an ice box. While mid 80's is optimal temperature, they will breed down to 70 (or so says the mighty google). As far as cleanout goes, I would just take a portion of the bin when it gets full and remove it to your compost pile. If some grubs come along for the ride, so be it. Spread the remainder out in the bin, and keep going.

Apologies, I should have said 'maggot bucket' from P Wheaton's comments