Have I created a hydro monster???

   / Have I created a hydro monster??? #21  
I'm not sure of the irrigation pump terminology. There are thousands. Look into a double drop jet pump that you could hook up to engine.. Good to 80-100' or so, but maybe short on gpm for large scale irrigation (how big is the garden?)
 
   / Have I created a hydro monster??? #22  
I'm not sure of the irrigation pump terminology. There are thousands. Look into a double drop jet pump that you could hook up to engine.. Good to 80-100' or so, but maybe short on gpm for large scale irrigation (how big is the garden?)
 
   / Have I created a hydro monster??? #23  
the max depth of suction is more a factor of how HIGH you are above sea level. max suction depth is actually someplace about 26' at sea level less as you get higher in altitude avbove sea level due to AIR pressure. to draw an absolute vacume is someplace at or about 26' of water height and no more vacume can be made period. SO the pump simply can not suck it up. a above ground pump (JET PUMP) will work or a SUBMERSABLE pump will need top be put into the well. one or the other if the water table is over the 26' height...

orriginal post info
good catch on the obstruction. gong from 1" to 2" was not needed, the pump water size at the 1'' limited the amount of flow availablefor the original post. dropping down to the 3/4" was bigger los of volume, should/could have gone with standard 1" black poly all way into the home from the pump. adding a pressure tank and "T" so that you could run multiple 3/4 ~ 1/2" lines out from the pressure tank.

anyhow finding all that junk in the lines wasn't fun I bet.

mark M
 
   / Have I created a hydro monster??? #24  
"gong from 1" to 2" was not needed, the pump water size at the 1'' limited the amount of flow availablefor the original post."

It doesn't work like that. Water flow through pipes does not work on the weakest link principle. The amount of flow available at the house for a given pressure at the well is based on the total losses between the well and the house. Each foot of 1" pipe creates more losses due to friction than losses from a foot of 2" pipe. So after hundreds of feet, the 2" pipe flows water more efficiently leading to increased energy at the house.

Now it might not be worth it to you if the 2" pipe is only marginally more efficient than 1" and the cost of the 2" is very high but you won't see anyone wishing their pipes were smaller.
 
   / Have I created a hydro monster??? #25  
</font><font color="blue" class="small">( "gong from 1" to 2" was not needed, the pump water size at the 1'' limited the amount of flow availablefor the original post."

It doesn't work like that. Water flow through pipes does not work on the weakest link principle. The amount of flow available at the house for a given pressure at the well is based on the total losses between the well and the house. Each foot of 1" pipe creates more losses due to friction than losses from a foot of 2" pipe. So after hundreds of feet, the 2" pipe flows water more efficiently leading to increased energy at the house.

Now it might not be worth it to you if the 2" pipe is only marginally more efficient than 1" and the cost of the 2" is very high but you won't see anyone wishing their pipes were smaller.

)</font>

while technically true that the 2" eill flow more water and have less (albeiet very little differance in resisatance at the flow levels we are talking about) the true flow restriction is the 3/4 and even the 1" coming up so while changing to 2" will reduce the resistance in that section of line it will not increase the flow... it also will not increase ANY pressure except at a very small amount at or near the full capabilities of the pump & reduced lines sizes. when it comes to domestic water use rarely will you see the amount of flow required to cause this. a larger pressure tank is best solution to increased flow needs. the pressure tank will provide the flow needed untill the flow slows/stops and the pump catches up shutting off the pump when the pressure switch is activated.

again you are correct that the 2" will flow MORE water due to it's size as well will have less resistance to that flow, but the resistance to the flow would only come into play when and or after the max flow of the 1" pump & 3/4 lines are maxed out for flowing ability.

mark m /forums/images/graemlins/crazy.gif
 

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