John C Daley

Douglass, do you have any more information please?

Thanks Kevin for the details of the vaults and the Low technology link, very interesting.

They look like breeze blocks repurposed as road base.

I have carted many bricks, and you dont get many in a load unless you have special equipment.
I have always found the dust to be a problem so I have avoided getting any,.
But how would you safely collect it?
Would there be asbestos in the dust?

Jerry,I think you are making it more complex than it needs to be.
Ebay has Taylor Dunn chargers available.
I am told its best to charge the battery set as a whole, not charge each battey separately.

Thomas, my Rinnia unit has no batteries and the spark is created by a water wheel when needed.
I dont use galvanised water fittings because they clog up over time with corrosion.
In Australia the flexible water hoses used to hook up just about any internal water using machine, are breaking and costing $A40 Million in insurance claims.
They last between 5-20 years.
I found a USA made range from Falcon, made entirely from Stainless Steel and will not break.
I suggest a look.

I just want to clarify things.
- Pressure is created by elevation alone, not storage volume nor movement [ flow ]
- It can be established with a spring by diverting it across the land to a storage tank slightly lower than the spring source, but higher than where you want the water.
The difference in elevation between the tank and the lower outlet  where you want the water is called the Head, and that is the available pressure.
You can have a static head, no flow or an active head, when the water is actually flowing along the pipe.

from; https://www.albertaurbangarden.ca/2015/06/05/does-the-chlorine-in-tap-water-harm-beneficial-bacteria
Yes, chlorine, a common disinfectant, can kill many microorganisms, including some beneficial ones,
but the impact on garden soil is generally minimal due to the protective nature of soil and biofilms.

DEnnis, think about water tank storage volumes of 5000gals. not 50 gals.
That will be more practical.