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Sump pump setup, and an odd question

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[OP]
Deal Guru
Jun 24, 2006
13944 posts
8671 upvotes

Sump pump setup, and an odd question

Hi everyone.

I just moved into a house built on and obviously high water table. The sump hole is always dripping and the pump runs quite often. I do have a 9000w generator setup that works well, but I am looking into alternative battery backup options so I don't need to always resort to the geni, and also, to buy me time to get to it if I am away, or sleeping when power goes out.

Now the regular pump is a pretty straight forward 1/2hp submersible, and it works well. There is an older one that still works in the corner I suspect for backup in case of failure, but I am looking for just power outage backup.

What confuses me is the second pipe connecting to the main pipe. I can't figure out what it is or was. It has a copper water pipe, running to a hose connected to something white at the bottom, but no electrical running off it. The more confusing part, is that the copper pipe runs back to the main water line into the house, but is turned off at the valve. So if I open it, it would in my assumption, put water into the hole, which seems very counter productive..... There is also the remains of a float bracket no longer attached.

Has anyone seen anything like this and know what it is or was for? Pictures from the pit back to the water to trace the copper line.
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10 replies
Deal Addict
Dec 17, 2007
2624 posts
1618 upvotes
Alliston, ON
The water line running into the sump pit could be for a backup sump pump that runs off water pressure, that way it'll work when the power is out.
Member
Feb 28, 2021
308 posts
288 upvotes
schade wrote: The water line running into the sump pit could be for a backup sump pump that runs off water pressure, that way it'll work when the power is out.
This is correct I have the same exact setup at my house. Uses a ton of water but will save your basement from flooding. Previous owners had battery back up that failed while at the cottage and left the entire basement with 3” of water.
[OP]
Deal Guru
Jun 24, 2006
13944 posts
8671 upvotes
Thanks! That would make sense.

I don't think it works though, as the water is off to it, and there is no float.

Would you leave the water turn on at the valve all the time for this, and it would only use water pressure when the float triggers it? IE when the main pump is without power or fails?

I wonder if I could test it to see if still functional?
[OP]
Deal Guru
Jun 24, 2006
13944 posts
8671 upvotes
So I finally tried it out and it actually works pretty well. I never knew this existed. Actually seems like a great back up, minus the expensive water bill if it runs for a while. Lol

That said, is the intention to leave the water pressure on to it all the time, as it will only take water when the power is out and the level goes past what the primary pump expels? I assume as much, but maybe you only are to turn it on when you are worried about and outage? Before a storm or trip, etc.
Deal Addict
Apr 27, 2010
1571 posts
373 upvotes
I just want to ask is there a brand name / model that is reliable sump pump that you recommened?

Greatly appreicated. I reallly need help... thanks.
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Deal Addict
User avatar
Oct 9, 2010
3138 posts
1321 upvotes
Windsor
Gutty96 wrote: So I finally tried it out and it actually works pretty well. I never knew this existed. Actually seems like a great back up, minus the expensive water bill if it runs for a while. Lol

That said, is the intention to leave the water pressure on to it all the time, as it will only take water when the power is out and the level goes past what the primary pump expels? I assume as much, but maybe you only are to turn it on when you are worried about and outage? Before a storm or trip, etc.
At my house, the normal sump runs typically. If it is not functioning or is overwhelmed, the secondary takes over (float is set higher). If both aren't functioning (power outage likely) or are overwhelmed, the water powered one runs (float higher than both sumps). I think it uses 1gal of water to remove two, so it's spendy if it has to run. However, a backup sump will cost you $400 + batteries every few years. A generator costs $500 ($0 for you, because you have one) and effectively lasts forever; water-powered pumping for the 5 minutes it takes to get the genny up is worth it imo.
One who is offended by truth, has no place among those who seek wisdom.
[OP]
Deal Guru
Jun 24, 2006
13944 posts
8671 upvotes
ChubChub wrote: At my house, the normal sump runs typically. If it is not functioning or is overwhelmed, the secondary takes over (float is set higher). If both aren't functioning (power outage likely) or are overwhelmed, the water powered one runs (float higher than both sumps). I think it uses 1gal of water to remove two, so it's spendy if it has to run. However, a backup sump will cost you $400 + batteries every few years. A generator costs $500 ($0 for you, because you have one) and effectively lasts forever; water-powered pumping for the 5 minutes it takes to get the genny up is worth it imo.
Thanks, Good info there.

So the goal of the water pump is just to buy time to get the generator going. Which makes sense then that you do leave the pressure on to it, as it only uses water to move water, so when the main pump is doing the work, you are not using water?
[OP]
Deal Guru
Jun 24, 2006
13944 posts
8671 upvotes
Okay, so I ended up replacing the water backup pump with the new version. I don't think the old one worked. Also made the main pump "hot swappable" with a couple of gear clamps. I have a new powered pump ready to go. Just drop it in, cut the pipe to size, slide on the coupling and tighten the clamp. Can likely do it fast enough I won't even need to bail.

I feel much better about this setup now as my pump runs every 10 minutes, and if power goes out the water powered backup buys me time to get the generator running and breakers flipped.
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Deal Addict
Nov 28, 2013
1326 posts
507 upvotes
London, ON
Gutty96 wrote: Okay, so I ended up replacing the water backup pump with the new version. I don't think the old one worked. Also made the main pump "hot swappable" with a couple of gear clamps. I have a new powered pump ready to go. Just drop it in, cut the pipe to size, slide on the coupling and tighten the clamp. Can likely do it fast enough I won't even need to bail.

I feel much better about this setup now as my pump runs every 10 minutes, and if power goes out the water powered backup buys me time to get the generator running and breakers flipped.

What water pump brand did you buy?

I am looking to have a water back up installed.

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