Help needed with Google Earth

[Termite]

What you need to do is set up a laser level at the tank...





















...and poke a really really really long stick up into the air.

[echnidna]

The bottom of the tank is only 30 feet above ground.
The trees must be another 50 or 60 feet higher.
I don't feel like using a laser level on the top of the trees

[echnidna]

According to google the fall is about 60 feet and the tank is 30 feet above ground so if google is only 50% accurate the total head is no more than 150 feet.

The 2" line is about 700 metres long so maybe the fire pump can handle a couple of thousand gallons a day. Its are supposed to have a head capacity of 250 feet. So I think I'll go look at the box of pipe fittings and see what happens when I hook it up.

Trouble is being right on Christmas theres some possibility of no water till the end of january if I don't do something now and theres 100 odd people due in over the next month.

I want to get this monkey off my back quick so I can get back to my shed and finish off my Jan market stock.

[ivanavitch]

Long shot here
Do you have a GPS.
Can you record the NMEA stream? Use hyperterminal.

Record an hour's worth of data at each point.
Post me the text files and I'll try some post processing. Should be able to get accuracies within 5 metres.

Google uses SRTM which has been "thinned" for our area to a point every 30m. The horizontal accuracies aren't that great either. I have seen errors of up to 30 metres. In a relatively hilly area this would upset your accuracies quite a lot.

I can get access to 100k topos, but not at home, so can't help you there.

regards

John Scott

[echnidna]

Thanks for the suggestions.
I don't have GPS so that's out.
Spoke to the pump man and he reckons the fire pump shoould do it but that a fire pump will probably only have around a 3 year life cicle against the 40 years the old screw pump lasted. He's not greatly enthusiatic about solar but I might look for a grant for a solar system with a fire pump as a reserve backup,

Thanks to everyone for all the suggestions and advice

[ozwinner]

Try here Bob.

Al

[echnidna]

Thanks Al,
Theres bin a few grants around for solar hot water and electricity etc
But I got to feel in the mood to make grant applications.
To do a good application is a lot of work and research.
But when I do extract the digit I usually manage a reasonable success rate

Of course if there are any Ministers or Advisers on the bb their assistance will be humbly accepted.

[Termite]

Of course if there are any Ministers or Advisers on the bb their assistance will be humbly accepted.

Sorry mate, wrong state. SWMBO's cousin is a minister in the NSW mob.