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GEO936: The windmill has been removed and the property sold. What a sad thing..after all those years, the iconic fruit and veg shop at this corner is no more. It was a landmark!
Thanks to all those that came to find it in the past!
Best regards
Silvia

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City Windpumps #6 - Fresh Produce

A cache by GEO936 Send Message to Owner Message this owner
Hidden : 10/05/2011
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: other (other)

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Geocache Description:

A quick and easy cache.


Found this Windpump in February 2011, took photos of it in July 2011, went away overseas, have battled to get back into the swing of things, and today, I finally managed to complete it! This is an interesting Windpump - it is still in good shape and I think many years ago this entire area was a farm and the vegetables were sold at a Farm Stall. Today, it is a well known Fresh Produce shop. City Windpump - Fresh Produce

PLEASE BE AWARE: There are always a few muggles about this area. So PLEASE exercise extreme stealth when retrieving and replacing this cache. Take photos of the chickens and of the old lawnmower - that should do the trick. Thanks!

I was fascinated to find a number of farm windpumps still standing in what is now developed suburbia. Through geocaching, I share my fascination with you.

These Windpumps are a reminder of our farming days of yesteryear.

From South African photographer Chris Myburgh's website:

"The first records found of a windpump in South Africa, is from a painting drawn in 1848. Records were found of windpumps as from 1869 and the first import was in 1874. These were wooden constructions. The first all steel windpump was patented in 1855 in England."

There are a number of types of windpumps manufactured both locally and abroad. Each manufacturer has its own style and branding. You'll notice the Manufacturer's branding on the Wind Vane.

Windpumps (Windmills) are fondly referred to as "steel flowers" especially in the Karoo area where they can be found in abundance, providing much needed water to the farms.

Taken from the website: http://www.dwa.gov.za/groundwater/NORADToolkit/7.2%20Introductory%20Guide%20to%20Appropriate%20Solutions%20for%20Water%20and%20Sanitation.pdf


"What is a wind powered pump and how does it work?

Wind powered pumps use the energy generated by wind to lift groundwater to the surface. A rotor is mounted on top of a tower. The action of the wind turns the rotor, which through a gearbox drives a reciprocating shaft. This in turn drives the pump in the borehole.

Windpump Schematic - How it Works

Wind pump adaptations

The air-lift groundwater pump was developed to provide a low-cost pump for use in informal and rural settlements. This pump system can be operated with tyre pumps. It has a wind pack compressor, capable of storing wind energy as compressed air. This provides supplementary power to the pump. All the working parts of this pump are located above ground, making maintenance easy.

Wind pump requirements

The pump requires sufficient wind speeds for significant lengths of time. The wind pump must therefore be placed where there is a clear sweep of wind. Also, the borehole should provide enough water so that continuous pumping does not result in excessive drawdown. Storage for several days must be provided to cater for calm periods when there is insufficient wind speeds to pump water. Further, someone must be delegated to apply the manual brake to avoid damage during storms.

Additional Hints (Decrypt)

Ratyvfu: Anab Zntargvp - Haqre gbc fuvryq onpx bs ynjazbjre - yrsg fvqr
Nsevx: Anab Zntargvrf - Baqre qvr obxnag fr orfxrezvat ntgre qvr tenffalre - yvaxrexnag

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)



 

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