It's a bit of a grind . . .

Cutting. Welding. Grinding.

Cutting. Welding. Grinding.

and more of the same . . .

I can't believe how many little bits there are to put together!
And when you finish it doesn't even look like much has been done.
This area is a bit tricky.
It's all very well using a computer program to draw walls and doors and lockers etc. just wave the cursor, press a few buttons and there they are.
The reality is a bit different however. I am using mostly 50mm x 25mm galvanised tubing as I think 25mm x 25mm is just a bit too light and tends to distort. This means at best however that there is a 25mm thickness to whatever you do. Then when you cover it with 12mm or 18mm ply on one or both sides space rapidly disappears! Things which fitted together on the computer quite nicely suddenly need quite a bit more room.
The most complicated area is the front left hand side where there is a series of storage bins one above the other housing various items which need to be separated from the interior and each other.
This fits quite nicely with this end being used for the ablutions area. The shower width is walled off right across and used for shower and toilet area. This does not need all the width so the end 300-400mm can be used for a series of storage bins accessed from outside.
The problem is the bays are not the natural width of the structural components and the height of the lowest bay is not the natural height of the rest of the floor.
While I can envisage what the various shapes and sizes of bins need to be and how they are arranged the method of construction while allowing for maintenance when necessary is quite tricky. It already looks like I may have to install a tank and then weld in some pieces which will make repairs impossible without tearing up the bathroom.
However the tanks I have ordered are 8-10mm food grade high impact polypropylene tested to 3bar. For $3000 for 3 tanks they had better be good!

So bottom bay is toilet cassette docking station and spare cassette.


















Above that there are gas bottles ( 2 x 9 kg ) and a small diesel fuel tank for the heating system.
This also happens to be the correct height for the toilet pedestal so the top of the first bin also extends through into the bathroom as a partial raised floor.
There will be a wall between them all the way to the roof.























The next bay up will be an instantaneous gas hot water system and a diesel fueled heating system.
There is still room for one more bay above that but maybe it can be used for internal storage space in the bathroom accessed from inside.

Somewhere or other there needs to be a water pump. It's an AUSSIE MADE Onga 240Vac JS1100 with Minipress 1100 sensor deemed suitable for a small to medium house. Fortunately it is quite small so it should fit without too much trouble.

Now I just need to figure out how to get the pipes from "A" to "B" . . .