tap water jet

[oro e lavoro]

Hi all
I was wondering if its possible to run a 8 inch power jet by tap water  supply.
As i read the water network has 7 to 10 bar pressure.A keene power jet has two 3inch injectors.
Using 2 or 3 hundred meters of cheap flat firehose to bring in the water ...
Works?

Thanks ,emilio

[lbd]

Of course it would be fine... but... one question ... do you have a water meter and pay excess water rates?

I imagine a fire hydrant would work...

[oro e lavoro]

hi LBD
There are some farmers nearby and last year i saw them irrigate the fields with some powerful jets.
Thought about a agreement with them.
In the meantime i looked up the tapwaterprice  there,its around 1 euro the cubicmeter.That would not be profitable.
Still trying to figure out how to be able to work where the gold is and not to be forced to work where the river has enough drop for my gravity dredge.
On the other hand i learned this year that we can get the dredge going also in rather flat parts of the river but using 2 weeks out of 4  for prep and a40 m long and (at the highest point) 1.4m high rockdam is  exhausting and then you wan't move again if you don't like the results.
That leaves probably only to find a natural source of water coming from high above somewhere.
Whats the pressure needed to get a 8 inch twin power jet from keene going?

P.s. saw your vid  with your triple box,looks good.

Greets,Emilio

[addergran]

You have the wrong venturi for your operation emilio, you should try mine, you don't need water, it will operate just as well with compressed air

[oro e lavoro]

Hi addergran

Unfortunately i'm not allowed to use motors in the river.Thats why i run a gravity dredge powered by waterlevel difference  between hose inlet and outlet.The river i work is pretty flat most of the time and so i have to build gigantic dams with oversize rock to create drop.
I don't have any venturi on my dredge but thought of buying one if my mining buddy carlo could make a agreement with a local farmer(i live 500 km away from the river) to use the tap water supply in to the ventury so we would be all legal.
But shure it,s interesting to hear about innovative designs for me and all other dredgers,so please post if you can.

P.s
Unfortunately things went totally downhil in the last 3 months.In december carlo told me his brother ,who was fighting liver cancer lost his battle,then ,a month ago my phone rings,it,s carlo's nr. 
I answer the phone and a woman ,his sister tells me she found carlo dead that morning ,heart attack at 44 years of age.

I stored almost all my gear at his parent's home .Easter i will visit them.Will have to see what the situation is.
Is gear complete,storage and how work the 8 inch all by myself(tailings)

At  3 sec .a quick look at carlo working. Honest, reliable  a friend. R.I.P.  
www.youtube.com/watch?v=UxTywv5x3S0