Yes, the pump casing is made of 304 stainless steel which will prevent rust in the borehole depending on the quality of the water.
1. Is this a stainless steel pump?
2. Is this a mono pump or diaphragm pump?
These pumps are mono pumps and works with a spiral screw which forces the water out the top of the pump casing. This allows for higher pressures and head.
3. There is a screw in the kit, what is this for?
All our kits are supplied with a spare screw so that when the screw inside the pumps wears out it can be replaced on site without causing major downtime.
4. How long does the screw last?
The lifespan of the screw is dependent on the type of water being pumped as well as the amount of sand or dirt moving through the screw.
5. Are all the screws the same?
There are different screws for the different model pumps, the smaller pump will use a low pressure screw and the bigger pumps use high pressure screws.
6. I see the specs show MAX 20m submersible depth, what does this mean?
This is the MAX amount of water above the pump. This is to ensure that the water pressure on the casing does not exceed the pressure rating. This is also done to make sure the pump does not get damaged when the water table rises a bit.
7. How far can I push the water with this pump?
This needs to be worked out as there are a few factors affecting this like elevation difference, pipe size, pump size, etc.
8. Does the borehole pump have a non-return valve built in to prevent the water from running back down the pipe at night?
No, the pump does not have a non-return valve built in and can be added in between the pump and pipe if needed.
9. What information do you need to size the pump correctly?
We would need to know the depth of the borehole, static water level, distance from borehole to tank, elevation difference, height of tank as well as the flow rate required per hour of per day.
10. Do I have to connect the water level probes even though I have a strong borehole?
The most important probes are for the well. This will prevent damage to the motor when the water level in the well drops. The tank probes can be used if needed but is not critical. When the motor runs dry this will cause damage to the screw as well as the bearings and seals on the motor.
11. Can I use this pump to irrigate directly from the borehole?
Yes you can. You would however still need to make sure that the pump will be able to deliver the correct pressure and flow rate required.
12. My borehole pump is delivering less water now than when it was just installed. What could be the problem?
The pump screw is the component that does the hard work and also wears out over time. It might need to be replaced.
13. My borehole pump just stopped working. What should I look for?
There could be a few different reasons. You would need to start with the solar panels and work your way back to the pump. You'll need to check input voltage and amperage (DC) to the controller, output voltage and amperage (AC) to the pump, Connections, water level probes, etc.