Submersible Pump Issues


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Old 07-24-22, 07:13 PM
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Submersible Pump Issues

Hi all -

I wanted to get your feedback on the following I've noticed with my sump pump.

Sump Pump Model: Barmesa 2SEV512
The pump pumps up about 1-1.5ft to a horizontal pipe that runs about 500 feet away from the home.

1) Earlier today, I tested the sump pump by running a hose in the sump and it was pumping some water out (a trickle, definitely not the normal amount), but then the pump itself began vibrating and shaking as the water level rose in the basin.
2) I disconnected the sump pump, submerged it in a bucket of water, and it was able to pump properly onto my lawn, which told me the pump was still operating and not burnt out.
3) I waited for a while, then I reconnected the pump, went to test it again. This time, the pump worked perfectly and was able to empty the basin multiple times without fail.
4) The only final thing I noticed is that after the pump emptied the basin at the end of my test, it started making a strange gurgling noise

I have 2 questions:
1) Any ideas as to why the pump was shaking/vibrating and not pumping, yet worked perfectly after disconnecting/reconnecting?
2) Any sense what the gurgling noise is after the pump shuts off?

Thanks so much!
 
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Old 07-25-22, 05:59 AM
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You might have a partially clogged outlet pipe. It might only be able to take a certain amount of water before it backs up.
 
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Old 07-25-22, 06:58 AM
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Thanks - that was my suspicion as well, but I periodically have the shaking/vibrating issue. Is it possible that there's an airlock issue?
 
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Old 07-25-22, 07:36 PM
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Gurgling wouldn't be uncommon. The long horizontal run of pipe could create a suction and draw water out of the pit until it's down at the pump level. Do you have a check valve in the line ?

There should be a weep hole somewhere down near the pump. It's a tiny hole in the pump volute or in the discharge line and allows the pump to get a running start and bleed out any trapped air.
 
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Old 07-27-22, 07:28 PM
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Thanks Pete -- we do have a 1-way valve in the line to prevent backflow.

No weep hole -- sounds like I should do that..
 
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Old 07-27-22, 11:33 PM
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A 3/16" hole drilled at a 45° angle pointing downward so that the water doesn't get thrown out of the pit. Try to keep the hole below the normal water level as there will always be water coming out of it under pressure when the pump is running. In any event.... it needs to be between the pump and the check valve.
 
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Old 08-06-22, 05:43 AM
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Thanks, this worked I think. Is it ok if my discharge pipe enters the side of a stream, such that the pipe will sometimes be submerged in water. Will it still effectively pump out?
 
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Old 08-06-22, 09:48 AM
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That should be ok. Your check valve will keep water from being sent back to the sump.
Could be a problem in the winter if the river freezes.
 
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Old 08-06-22, 11:57 AM
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Thanks -- the discharge line is above the water line and therefore out of water normally. It only becomes submerged in big rain storms.
 
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Old 09-27-22, 05:05 AM
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Followup

Hi all - so I went ahead and added a weep hole and have tested with normal operation, however the other day it was raining and I took a look at the pump and it appears to be struggling/rattling.

video here: Video

any help appreciated!
 
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Old 09-27-22, 05:25 AM
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What's on the bottom of the pit? Mud, stone, brick? Sounds like your suction is being clogged while in the pit.
Other possibilities is a worn impeller. Worn bearings. How old is the pump? Is the water hard?
 
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Old 09-27-22, 03:35 PM
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We have large pieces of gravel/rocks at the bottom. The pump is just a few months old and it’s rainwater so hard to tell how hard it is, but it does get rainwater that sometimes has leaves etc. i figured since this is a sewage pump it could handle that
 
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Old 09-27-22, 04:34 PM
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The problem that might happen is if the suction gets totally clogged. Years back I had a submersibles and leaves got in and totally blocked the suction. I did not know it for like two days. When I went down to the basement, I had steam coming from up from the concrete floor for about 10 feet from the pit. If had not been that the pump was submerged in water, it would've burned out and I would've flooded. Because of that I will never get a pedestal pump and I always have a water warden alarm next to the pit.
 
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Old 09-27-22, 07:34 PM
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There should only be a small hole in the pipe to allow the water to weep.
That hole looks pretty large and it also looks like that pump is pumping into a load.

Are you sure your long pipe is clear ?
Once the pump starts it should pump smoothly.
 
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Old 09-28-22, 04:49 AM
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Somehow the weep hole appears to have gotten larger. I have no idea how.

i assume the suction wasnt clogged, but i cant be certain…i will check. It’s a sewage pump so leaves should be able to get ground up
 
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Old 09-28-22, 10:35 PM
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When a pump tries to pump into a high head.... a load.... it does that pulsing thing
 
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Old 10-04-22, 06:37 AM
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Thanks -- so the current setup is that it's a 2" discharge that then turns into a 1.5" pipe that runs all the way out to the stream.

If I were to switch the 1.5" pipe to a 4" pipe, does that help or is it going to be restricted by the 2" discharge directly from the pump?
 
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Old 10-04-22, 07:12 AM
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You never go from large to small on any type of discharge or drain type configuration.
 
 

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