I'm thinking about buying a small (3-5K Watt) generator for emergency sump
pump power only and was wondering about hooking up a dedicated plug just for
the sump pumps to be fed by the generator. In other words, running wiring
from where the generator would be used down to the sump pump but NOT having
the wiring hooked into the house wiring in any way. That way the generator
could power the pumps but would not interfere with the rest of the house.
It would work but you probably don`t even need 3000w.Or you can do
something totaly automatic if you have city water www.basepump.com
or www.zoeller.com water powered sump pumps can perform as well as
electric if you have good pressure and won`t stop and are automatic ,
used in the same pit but set at a higher turn on level. But if electric
goes so does the frige and lights etc. Why not set up the house,
transfer panel complete kits are only 200 from Generac, Lowes often
gives them away free with a 600$ 5500-7500 Generac generator. Real
cheap gens have poor quality lawnmower engines only good for 200- 350
hrs. And no gen should be run in the rain , likely when your power goes.
Do you get much water in your sump? If not, a battery powered backup pump
will be much cheaper and easier than a generator; and automatic to boot.
(Someone else suggested a waterpowered pump. I just installed one for
someone; it feels like a POS. I wouldn't want one in my basement.)
If you get more water in your sump than a battery backup would reasonably
handle, think about a gas powered pump. They are not automatic and priming
can be a pain, but they will pump much more water per gallon than a
generator/pump and will cover you in case your sump pump breaks.
The words "extension cord" comes to mind. Just run it from the generator
location to near the sump socket. Can hang it up permanant like, if you
Plug the EC into the generator. Plug the sump into the EC.
I saw a 250 foot EC one time, somone had put a socket one end, plug other
end of a roll of Romex. Neat idea.
But the advantage of an EC is that it probably won't upset building
inspectors or safety guys.
Toller , I dont think Zoeller makes anything that is junk, and basepump
is probably just as good. If you mean lightweight and plastic , well
there is no motor. The other day I saw a little Echo gas pump, but
primimg would be the issue. Battery power= junk , how long do batteries
pump, how long till the battery is junk and won`t pump, 4-6 yrs?. And
how will you know when the battery is trash unless you take it and get
it load tested every year. And who will remember or want to. I still say
water powered for city water.
It depends on the water pressure, pipe diameter, and head. Roughly 1 gal to
remove 1 gal.
The problem with the two I have installed is that everything is really
flimsy plastic. They feel like they will fall apart if you breath on them.
But, if you are comfortable with that, they do work.
Bear in mind they require a $100 backflow preventer to meet code. I think
that requirement is a little silly, as I can't see any circumstances under
which there would be backflow, but that is the code; at least in NYS.
by the way, I have a small 2500 watt generator i kkep around and also a
car battery with an inverter.
the inverter and car battery will run the pump for a while
P.S. Do NOT EVER run the generator inside the house...!!!!!!
The CO will kill you.
Don't do this.. extention cords are intended for temporary use, not
This is a Kludge. Romex is not designed, or rated for this application.
If I find this kind of crap around any of my facilities, I cut the ends off,
and put everything in the parts bin.
If you're going to build an extention cord, use the proper wire
(type S/SO/ST/SJ/SJO/STO/etc). It's fine to use an outlet box on the load
end, but make sure to use one that can handle the abuse.. I like the cast
aluminum outdoor types, with gland type strain reliefs, sometimes with
basket grips as well.
Only if it's properly run on a temporary basis.. a permanantly installed
extention cord will upset the inspectors and safety guys, while a properly
installed extention circuit will not.
You can certainly do this.. run a circuit from a plug where the generator
will be (can be flush, to be used with a extention cord, or a pigtail),
to the sump pump.. label it at both ends. make sure to follow all applicable
codes, and pay special attention to grounding.
Alternatively, depending on where your breaker panel is in relation to the
generator, and if the sump pump is already on an isolated circuit, you
could have a simple 2 pole transfer switch installed on just that circuit,
to allow feeding it from an external outlet. You will want to transfer both
the hot and the neutral, but tie the grounds together.
You could also install a small transfer panel, to allow feeding of selected
load circuits from the generator. For instance, you may want to power a
couple of lighting circuits, and your refrigerator in the event of a
power outage. If you have gas heat, you may want to power the furnace blower.
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie@.stanford.edu | email@example.com
I posted here a couple of years ago about how one of the Zoeller water powered
backup pumps saved my finished basement after a 5 day outage from an ice storm.
Worked just fine.
In the intervening 2 years, though, we've gone through two of them. The
first one was replaced under warrenty - the float switch started leaking
terribly when it activated. Now, a year after getting the new one, the
float switch started leaking terribly - WITHOUT being activated. I'm damned
glad I was home at the time, or I would have been in a very bad way, as a
continuous stream of water was shooting out horizontally about 6 feet. The
plumbing supply house response was basically, "Yeah, they do that
after a while." Their suggestion was basically to buy a complete new
pump kit, as it wasn't much more than the replacement switch, and "You can
use the rest as spare parts. You'll need them."
I guess we're back to using a battery backup pump. Since we now have
a generator, it's less of an issue when it comes to powering it.
So I used to be a fan of water powered pumps - but not any longer.
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