I was going to try hooking up the solar heated tank to the electric tank, and in anticipation of that moved it to the east wall (northeast corner) of the back room, instead of in front of the shed. That would let the garden hoses reach inside thru the dryer vent, just to test out the thermosyphon functionality at ground level, and see if it is even necessary to put it on the roof at all. It also lets the hoses (barely) still reach the outdoor garden hose faucet, and the bathroom window for the showerhead.
Then I went to Lowe's to check out costs fo plumbing, didnt' have enough time, but found it shouldn't cost any more than maybe a couple of month's power usage for the electric water heater, which I've *already* saved, for hose and fittings. Didn't buy anything yet cuz I need to draw it up and measure things first. I did buy a couple of brass garden hose Y-adapters with valves, cuz I need them out in the yard anyway, because based on my present experience iwth the solar heater tank I thought (wrongly) that the threads would be the same on the in-house tank/fittings. I would have bought thread-on T's designed for the house piping but according to the plumbing guy there, there is no such thing. I'd have to make 2 of them out of hose and fittings--might as well only do it once I have the list of stuff and measurements.
In actuality, neither tank is the same as the garden hose fittings, and I was just lucky: First, on the input side of the tank I used a hose off my aquarium, and it happens to use "National Pipe Thread" or whatever it's called, and that hose happens to fit fine on garden hose thread on the other end, either by luck or by design. So when i threaded it onto the tank it fit fine, and the garden hose onto it's input that then also fit fine. The garden hose used on the output is plastic thread, so I guess it reformed itself enough to fit the NPT on teh tank.
But when I tried to fit the brass Y's on the house-side fittings in the utility room, they would thread on but would leak hugely--they won't go on deep enough to engage the seals.

I can see no thread damage on either, and putting the electric heater hoses back on has no leaks. I see very little difference in the NPT thread vs garden hose thread, but it IS different, enough to make my "quick test" plan fail.
So...I'll need to draw up my stuff and figure out all the hose and fittings I'll need, then buy and make those, and then test it out.
Also, the leaky area of the tank I welded up doesn't seem to be leaking anymore. Maybe the minerals in the water are sealing it up? I dunno. Probably still a really good idea to cut and patch it.
dogman said:
I definitely can see how there would be many days you could not use the outdoor shower. But you'd be surprised how many you could.
Possibly, but one problem is that the days I couldn't use it are often enough the days I would need it. :/ Sure, I could still use the inside shower for those days. I also don't know if there are any city regulations against it--with my luck, there would be--there are against many things I would already otherwise be doing.
If you can have hot water outside, free, that can become where you do lots of stuff, AND the grey water goes to the tree. That's the real benefit. Even a crappy old washer can be put outside to run on cold and used 9 months a year, once you have that little privacy area to hide it in. Right there in the corner left of the back door. A gallon can be carried inside to do the dishes if it's close enough. Or set up an old junk sink out there.
Well, the problem there with having all those things outside then becomes "items stored outside" in the view of the city's harassment/enforcement division. Even if the landlord has no objection to any of it, I only have a chainlink fence, and being a corner lot the entire backyard is visible from the street. I'd have to put up a visual barrier, which itself would have to look pretty nice to avoid trouble, to prevent anyone from seeing any of those things. Essentially "walling off" a section of the yard around the back of the house. It couldn't be just a curtain, because of the winds--it'd have to be a reasonably solid barrier, of matching materials, etc., to avoid potential problems with the city.
The other option is to put everything in the shed under the tree, and use that for my "outdoor" shower, washing clothes and dishes, etc.
Either way I sitll have to buy some stuff to use for plumbing, including y-adapters or tees. Garden hoses (at least not the ones I have now, or any I've ever had before) arent' going to stand up to having pressure on them constantly especially when it's hot. Even if I cover them so they don't get direct sunlight, they still go bad from that sort of thing way too fast.

Might last a year or so if I'm lucky (sometimes they only last a few days or weeks before springing leaks, or having the ends come off, and at $30-$70 a pop, that's just not worth it). So I'd need to buy some sort of plumbing that is able to stand up to that for years, and if I am doing that anyway, I might as well buy what I need for putting the solar heating tank on the electric heater as a thermosyphon system. Then I don't have to waste the space in the shed for all that stuff, and can use it for my workshop as I'm currently planning to (since it's the most shaded of the sheds right now).
Though prefab wood fence panels, or stout chain link fence you could permanently hang tarps to are expensive, it might still be cheaper than changing the plumbing to the house.
Can't use tarps in any permanent method--city doesn't allow them.

Found that out the hard way a few years ago, when I had to move all my stuff into the house with a broken ankle.
Plumbing to the house all I have to change is to add T's to the connections at the electric water heater, and run pipes (probably that flexible plastic stuff just like the house is itself plumbed with) to the solar heated tank. I checked it out at Lowes' and in the short glance around I had time for, it doesnt' look that expensive...but I have to use a special crimper for the fittings, and THAT is $60--I think that is actually as much or more than all of the other tubing and fittings put together! But I can probably find someone that has the crimper that I can borrow, or maybe have them crimp the fittings on for me if I take it to them, for cheaper than buying hte tool.
Sometimes you can get the wooden fence panels freecycle, from somebodies trash. Even just a few boards here and there can be put into a new wood privacy fence.
Yeah, I'd been collecting that kind of stuff for years, just for the purpose--unfortunately it's almost all gone now, stolen or hauled off after the fire. And it doesn't matter, because the city's regulations require that all fencing be of consistent materials/appearance, and in good condition.

So whatever I get I'd either have to get all the same kind and condition and appearance, or I'd have to go buy good long-lasting paint to cover it all with.

Given my luck so far with the city, I'd be harassed or fined if I did it the way I can actually afford to.
If I am going to build a fence, and have to comply with all these regulations, I might as well just save up for a long long time and build a block wall. At present I am spending more than I make, so it won't help. Maybe once I can get enough of my plants/trees recovered to the point where they can survive the heat without so much water, and get the less-water-intensive plants started, I can cut back on water use (which right now is $150-$200 a month for summer, even with me putting all of my household water back outside as greywater, except for the toilet, and with ONLY watering the specific plants I am keeping alive and trying to grow big enough to survive on their own). At that point I might reach a balance between income and outgo, assuming costs of everything haven't gone up to eat that up by then.
Sure, it might not be something you can do immediately, or even this year. But if you can divert that tub and washing machine water to your best tree, it will really grow. Make sure it doesn't all go one place though, move the drain hose regular so it doesn't rot the main root. Put that nasty washing machine water out by the drip edge of the tree, and cut the amount of soap used.
The washer presently drains out to the southeast area of the backyard, by the carport, via a drain hose extension thru the unused dryer vent in that wall. I don't wash except every couple of weeks, most of the time, so I don't have very much greywater from that.
The tub drains via a soaker hose that goes in a circle around the biggest tree at the southwest corner of the backyard/house; it's pumped up and out the window by a little aquarium pump I only run for about 2 minutes (or less) once done with a shower.
The only water presently not recycled is whatever gets used to wash Tiny, cuz the fur would clog up the pump. Once I find my intake extension for hte pump, I can wrap that with a sponge filter to keep the hair out and then recover that water too.
The kitchen sink water goes into a kitty litter bucket on a dolly, and gets manually hauled out, until I find enough of my other hose and fittings to use another aquarium pump (when necessary) to route it outside automatically.
Sorry I'm rambling a lot...there's just so many things that would be really really easy and cheap to do if it werent' for rules and regulations and easily-offended people.

But I have to be careful to stick with their rules and not offend people so I can peacefully stay where I am.