Can't read the model number, but the pumps I've seen in that case are all screw type.Most of these 12v DC pumps are diaphragm style
For the final install, a better pump with a soft-start controller may be a better option.
Can't read the model number, but the pumps I've seen in that case are all screw type.Most of these 12v DC pumps are diaphragm style
Screw pump? I'm not familiar with that style. We've done a around a hundred solar water pumping systems and I haven't seen any pump referred to as a screw that I can recall. Could be regional thing though. Hmnn.. I could see why people would call a helical rotor pump a screw pump. Regardless, I'm 99% confident that's a diaphragm style pump in that short of a case.Can't read the model number, but the pumps I've seen in that case are all screw type.
For the final install, a better pump with a soft-start controller may be a better option.
Ha I hadn't connected those dots. LOLA "SURGEFLO" HaHaHa - as close to Sureflo as you can get without being sued!
When I bought my first (looks the same as above), it was supplied with a Replacement "screw" (as described by the manufacture).
It looks like this:
We just did one that took DC and spit out 3 phase AC to the pump. It was the usual poorly documented Chinese pump so it was a bit of of head scratcher when it came to hook up the three wires to the pump.DC into the controller and 3ph down to the pump is the common way to do a soft start (with many other benefits), but adds to the cost.
You're welcome. I agree that it likely has nothing to do with the OP's issue.Should run for about 10 hours (less because of inefficiencies) on a fully charged battery alone.
EDIT: Oops, thanks @OzSolar
But this shouldn't be causing OP's problem.
I've installed one of that type from my own use in the deep bore. I ordered direct and got a special build - for a modest additional fee (and waiting for delivery instead of local dispatch) I received a pump with 50m of cable.We just did one that took DC and spit out 3 phase AC to the pump. It was the usual poorly documented Chinese pump so it was a bit of of head scratcher when it came to hook up the three wires to the pump.
Do you have an amp meter? Or know of one you can borrow? Im curious to know just how many amps that pump pulls. I want to drop a well next fall and am considering using the same type of pump in the well. I strongly suspect that the power consumption of those pumps is purposely mislabeled by the manufacturer to make the pumps look more attractive to us solar power folk. It would be interesting to see if Im right and if so, by how much. Either way, Ill still probably buy one of the pumps lol! Even if the pumps pull 15amps with a surge of 20amps, the pumps are pretty cheap and my system could deal with it. Its not like the pump would be running much.Yea, it has to be the startup amps that it can't handle.
Sorry, just one more thought and Ill stop spamming this thread. Perhaps the pump IS properly rated at 10amps but only when there isnt a work load involved. What I mean, is the pump will surely pull more amps trying to push water up from a well, especially a deep well, than if you're dry testing it in the "air" or even wet testing it in a bucket of water. In the later two cases, the pump may require just 10amps or less to operate. In the case of pushing up water from a well, it will require significantly more power. This might be how the manufacturer can get away with labeling the pump at 10amps. Just a thought.Yea, it has to be the startup amps that it can't handle.
10amps does seem a pretty heavy draw for a pump that's doing no work but you have to wonder why the fella's 20amp port wont run his 10amp pump so thats why Im...wondering. The pump in my RV pulls up to 8 amps max. I imagine that happens only toward the tail end of its cycle as it brings the lines back to pressure (35 or 45psi? I cant remember exactly now). But my RV pump doesnt have to "lift" or "push" water any higher than a couple of feet from a holding tank and then to fixtures. My RV pump is a quality, name brand pump (that I just replaced last yearEbay seller not being completely honest - surely you jest
10A is a lot of power for a pump to draw if it's less than full load
@OzSolar , do you have an opinion as the lifespan of the helical/screw pumps?
For myself, the cheap pump was planned for a low priority use, but for the more critical location, I organized a higher spec pump.
Also, it seems that this thread is quickly moving away from the OP's original enquiry and more into comparing various styles of pumps and so on. I was hoping to re-connect with the OP about his issue before he stopped checking in.Ebay seller not being completely honest - surely you jest
10A is a lot of power for a pump to draw if it's less than full load
@OzSolar , do you have an opinion as the lifespan of the helical/screw pumps?
For myself, the cheap pump was planned for a low priority use, but for the more critical location, I organized a higher spec pump.