Water backup systems compared

lkpat said:
How deep is the borehole? Different pumps for different depths, also a solar pump is a chunk more money. I’m referring to a 100m deep hole.
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80m using a 1,5kw more than enough, but will work just as well at 100m and then some. Solar pump wont go more than 10k, not the R60/R70k/R80 mark, figures you putting up
 
Calkem said:
80m using a 1,5kw more than enough, but will work just as well at 100m and then some. Solar pump wont go more than 10k, not the R60/R70k/R80 mark, figures you putting up
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I'm also thinking in the 5-6k range. Not 50k.
 
Calkem said:
80m using a 1,5kw more than enough, but will work just as well at 100m and then some. Solar pump wont go more than 10k, not the R60/R70k/R80 mark, figures you putting up
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What sort of cost is it to drill an 80m borehole? Is the R600-900 per metre in the article reasonable?
 
NR7 said:
What sort of cost is it to drill an 80m borehole? Is the R600-900 per metre in the article reasonable?
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I personally dont know, since it was done by my grandfather long ago, but I can tell you the last one I did 3 years ago it was about R630 per meter. It's a reasonable scale, depending on the property's location/area and contractor.
 
bwana said:
According to use-rainwater.com

Which is utter BS. Tanks run roughly R1 per litre, a pump maybe a couple thousand. A base for the tank similar. Some basic plumbing, a first flush, and a leaf eater for a grand or two and you're looking at R11-12k.

Hell - I plumbed mine into the house with a R400 garden hose and a one way valve from builders. I can switch between washing machine only and the full house with a R150 ball valve.
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Please write a article. Sincere request.
 
Water tankers supplied by the government are only sent to areas where they will burn/loot/steel/fsck everything.
The rest of us are on our own. I would love to see a water tanker sent to my neighborhood during a water outage.

The masses would mess their streetwise all over their new t-shirt if that were to happen.
As I am typing this we are without water, again.
 
You can’t just store water in tanks for household use. It needs to be kept fresh, clean, bacteria and disease free. Treated with Ozone/UV/Chlorine/etc.

You also can’t just pump borehole water into your house. Depending on the quality of the water it could need pH correction, iron removal, filtration, etc. You’ll only find out after you drill the hole and test the water.
 
TedLasso said:
Please write a article. Sincere request.
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Yeah, I'm definitely not a writer but we'll see.

DanH said:
You can’t just store water in tanks for household use. It needs to be kept fresh, clean, bacteria and disease free. Treated with Ozone/UV/Chlorine/etc.
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I drop in 1g of Shock-it per 100l every other week or after a big rain which seems to do the trick.
 
Calkem said:
80m using a 1,5kw more than enough, but will work just as well at 100m and then some. Solar pump wont go more than 10k, not the R60/R70k/R80 mark, figures you putting up
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Nobody said R80k or even 70k. Don’t exaggerate. Link to the pump?
50m without panels: https://mainlineirrigation.co.za/product/dab-hybrid-solar-s4sun-1-19l

Also without panels:
www.sustainable.co.za

Grundfos SQF 2.5-2N Submersible Pump

Increase your peace of mind with SQFlexWith its built-in electronics, SQFlex offers improved reliability and pump operation, giving you peace of mind. SQFlex features Maximum Power Point Tracking (MPPT) – a built-in electronic unit which continuously optimises the duty point of the pump...
www.sustainable.co.za www.sustainable.co.za
 
DanH said:
You can’t just store water in tanks for household use. It needs to be kept fresh, clean, bacteria and disease free. Treated with Ozone/UV/Chlorine/etc.
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Filtration, yes, ozone/uv/chlorine? No. 3 years and no issues my side, but then I don’t live in town.
 
Be aware that many municipalities will not allow you to store municipal water in backup tanks. E.g. in Cape Town it is explicitly forbidden according to the by-laws to have a buffer tank. In addition, if you are going to connect your water storage system to the pipes in your house you will have to pay for a very expensive non-return valve that prevents your house's water supply from backwashing into the municipal supply. There are loads of by-laws and regulations that need to be considered with a water backup system, at least in a functioning municipality that actually enforces its by-laws.
 
deweyzeph said:
Be aware that many municipalities will not allow you to store municipal water in backup tanks. E.g. in Cape Town it is explicitly forbidden according to the by-laws to have a buffer tank. In addition, if you are going to connect your water storage system to the pipes in your house you will have to pay for a very expensive non-return valve that prevents your house's water supply from backwashing into the municipal supply. There are loads of by-laws and regulations that need to be considered with a water backup system, at least in a functioning municipality that actually enforces its by-laws.
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Very expensive non return valve? Is ther something in the bylaws about buying a DA approved valve?
 
lkpat said:
Very expensive non return valve? Is ther something in the bylaws about buying a DA approved valve?
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It's actually called a reduced pressure zone valve, mandated by the City of Cape Town if you install a alternative water supply to prevent backflow, and yes, they are pretty expensive compared to a normal non-return valve.
 
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