10 hours ago, bankruatsteve said:

I believe the OP says 10m of pipe with water level starting at 15ft.

i believe...

Quote

If you have 1" pipe from the bore to the pump inlet, the water level is 15 m down.....

 

9 hours ago, Artisi said:

10 hours ago, Naam said:

with the water level 15m down there's nothing to calculate if the surface mounted pump is not a jet pump.

really depends on how pedantic you want to be, but you're  correct , a 1" pipe x 10m on the inlet side of the pump wouldn't /shouldn't  cause any problem.

there's nothing pedantic drawing somebody's attention to the fact that a surface mounted pump cannot suck from a water level down 15 meters unless it's a jet pump. period!

pump impeller location? submerged or at ground level?

 

2.5MW vertical sea water pump and gazing down into the pump bay where the impeller resides...30 meters down into a concrete darkness redolent of incipient horrible death...they don't pay me enough fer this shit...

 

 

5 hours ago, Naam said:

there's nothing pedantic drawing somebody's attention to the fact that a surface mounted pump cannot suck from a water level down 15 meters unless it's a jet pump. period!

My apologies, miss read the 15m as 15ft. 

On 13/04/2018 at 6:55 PM, Artisi said:

He was talking about 10 m of pipe with   a water level of 15m. 

Seems I cocked-up, saying 15m in lieu of 15ft, I'll stand in the corner for 30 minutes?. 

Wirejerker,

 

I can check the voltage at the breaker switch when the pump is running, but don't know how to check at the pump itself.

How far is the breaker switch from the pump.


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12 feet

That will be fine then


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thanks, I'll check it out.

230 volts not running        223v running

That’s an excellent result. Check your flow rate is not to much for the pump. If that’s Okay check the motor it could have a dud capacitor or winding.


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2 minutes ago, Wirejerker said:

That’s an excellent result. Check your flow rate is not to much for the pump. If that’s Okay check the motor it could have a dud capacitor or winding.


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OP, was the pump supplied as a manufacturers assembled unit or is it a pump / motor unit assembled by the local pump shop ,  normally manufacturer assembled units have a pump / motor combination for operation under any condition, ie. motor won't overload under any operating condition.

Thanks again,

 

I turn down the flow rate and get the same results, shut off after 10 min.

 

This week, after the fun is over, I'm going to buy a new submersible. Then I'll have a new set of challenges. I'll need to learn how to splice the cable so it's waterproof and decide if I want to install a check valve or not. The last submersible had no checkvalve so the water would siphon back down the well when I shut it off. That was a good thing when I pulled the pump out the other day. It was all this old guy could do to pull up the pump. If it was full of water, I'm sure I couldn't do it. 

 

 No problem, I like a challenge and gives me something to do.

 

 Thanks again.  Z

1 hour ago, zlodnick said:

Thanks again,

 

I turn down the flow rate and get the same results, shut off after 10 min.

 

This week, after the fun is over, I'm going to buy a new submersible. Then I'll have a new set of challenges. I'll need to learn how to splice the cable so it's waterproof and decide if I want to install a check valve or not. The last submersible had no checkvalve so the water would siphon back down the well when I shut it off. That was a good thing when I pulled the pump out the other day. It was all this old guy could do to pull up the pump. If it was full of water, I'm sure I couldn't do it. 

 

 No problem, I like a challenge and gives me something to do.

 

 Thanks again.  Z

Under water level cable splice or above water level?

Artisi,  Under water,

 

The pump I looked at comes with a flat wire about 1 meter long. 

 

Lots of youtube videos, but not sure if they have whats needed here.

 

There's a real electrician next to the pump shop, so he can probably fix me up.

27 minutes ago, zlodnick said:

Artisi,  Under water,

 

The pump I looked at comes with a flat wire about 1 meter long. 

 

Lots of youtube videos, but not sure if they have whats needed here.

 

There's a real electrician next to the pump shop, so he can probably fix me up.

Underwater splicing is not for the inexperienced, a hole /leak sufficient for one molecule of water to pass will result in failure - eventually. 

Pass on that pump. Get one with a 10 meter lead on it. You won’t be sorry


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2 hours ago, Wirejerker said:

Pass on that pump. Get one with a 10 meter lead on it. You won’t be sorry

+ 10^6 on that, no way I'm going to be making a splice that's going to be under several metres of water.

 

Get a pump with a long lead.