Question about Flotec 1/4 Horsepower Sink Pump System

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Pump not kick in

Flotec device for a basement sink. The pump doesn't go on even though the float is well above the level at which the pump should start. When you touch the float the pump starts. There does nto appear to be any obstruction of the float? Help.

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  • mrpres Jun 23, 2009

    There are no obstructions around the float / ball. I will replace the ball and see if this works. Why would it not be the mercury switch????

  • mrpres Jun 25, 2009

    Pump was fixed, the breathing pipe was an obstruction. Simple. Thanks



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The float has a mercury switch and that is what will make it turn on and off.  this ball sounds like it is not working correctly.  you will have to replace it.  just the ball

Posted on Jun 23, 2009

  • Cameron loker Jun 25, 2009

    the is the problem is the mercury is not flowing across the contact properly. this is a very common problem. the ball can not be fixed. the mercury is in the ball .



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1 Answer

To: Tim Hofstetter

Its supposed to be controlled entirely by the float switch in the pit, etc. Its not uncommon for the pump to work or stay on even if the water level drops because the float can get hung up on the pipes, side walls, debris in the pit etc. You need to eliminate all those issues. Other issue is the float switch my be bad, hanging up or need resetting to the proper height etc. If its still a problem try replacing it with a water sensor switch instead.

Aug 13, 2014 | Little Giant Plumbing

1 Answer

Sump pump

I am presuming you're asking about a basement sump pump, the kind that keeps your basement dry. Well, those things are not meant to run all the time. They are usually triggered by a float valve. That is a device that moves according to the water level in the sump (in other words, the hole). When the water gets high enough, the float activates a switch, the pump kicks in, the water is flushed away, the float falls and that turns the pump off until the cycle starts all over again. The frequency of the cycle depends on how fast the sump fills itself. I have one that kicks in five times a minute. Another might have a much longer off time. But don't be worrying about yours not being on all the time... that is how they are supposed to behave. Of course, if you have water flowing out the top of the sump, that is a sign things are not right with the pump. Then you really need help.

Jun 25, 2014 | Health & Beauty

1 Answer

I have the 1/3 hp, 115v model. My pump is in my basement and below my utility sink, it pumps overhead then out to the road. It will pump water out, but then will try to keep pumping. Not continuously...

Do you have a check valve on the discharge line going to the street? This would prevent the backup of water back to the pump making it want to come back on. Things you can try, can you make the holding tank under the sink larger so more water need to be present before it comes on? Also have you tried to put a vacuum break on the system? You can make one easy by razing the outdoor discharge pipe two to three feet high just as it comes out of the house, place a upside down "U" at the top that flows into an open larger pipe that take it to the street. This way if you are getting a back flow you will only get the amount of water between the pump and the upside down "U", however if it was me I would be sure there is a check valve close to the pump so a back flow cannot happen, you can get them at your local hardware or pluming store.
Lastly, the float is adjustable in two locations, one is the location of the float when the maximum water level is reached (turns on the pump) and at the level of water where it turns off the pump, giving a buffer area so if there is flow back it takes more to turn the pump on and less to turn it off, try playing with these two levels on the float.

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I have a Flotec FP0S1775A Utility Pump. It is in a section of my basement (flat) that is about 1.5 inches lower than the rest. Today is the first day the pump is being used and for the most part it is...

1 inch of water is probably not enough water to set off the pump. The water level must be high enough to float the switch ball beyond 90 degrees of level before it will activate the pump. The pump will not evacuate all of the water there will always be some water left in the tank this prevents the pump from a dry start.

Mar 07, 2011 | Flotec 1/4 Horsepower Sink Pump System

2 Answers

I have a Flotec pump model #FPSC4550A that will not stop running even though the float falls down. Any ideas?

Sounds like the contact inside the float is stuck. It can be corroded and not letting the circuit open and that will keep the pump running.
If it had been fine but just started doing this, that is what I'd check. If someone could have accidentally wired it incorrectly when they were trying to fix it, perhaps they accidentally bypassed the float switch and have it "running hot" all the time.

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Pumb only pumps a small amount out of the basin. Float needs adjusting to go all the way down and empty the basin. How do you adjust the float/bulb to travel farther down without shutting off after only a...

Flotec website shows several submersible sump pumps, and pump types:

Click product, then click on 'parts and literature' to access manual
Here is a Flotec manual:

Manual for this type of sump pump says:
Quote from manual: Automatic float switch is sealed and factory adjusted for
most home sumps. Turn-on water level is 10" - 12" above
pump base. Turn-off water level is 4" - 6".

The manual also says that running the pump when dry will ruin the seals.
This implies that the water level setting is set so the seals will not be damaged

You might be able to dig the sump deeper, but I don't know if that meets your objective.

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Flotec FPUS1860A utility sink pump won't stop running

Either the float is stuck or the float went bad...
give it a kick and make sure the float has dropped down and is not hung up...
If that don't work then unplug it and replace the float switch...


Sep 17, 2010 | Flotec 1/4 Hp Automatic Utility Pump

1 Answer

Pump will not shut off

Either the float has gone bad or the float is stuck...
give it a kick or a slap and see if that dislodges the float...
If the pump continues to run, open it up and make sure the float has dropped...if it has then the float will need to be replaced...


Aug 26, 2010 | Flotec 1/4 Horsepower Sink Pump System

1 Answer

Pump quite working

Start by checking float switch

Jan 09, 2010 | Flotec 1/4 Horsepower Sink Pump System

1 Answer

How to clean a sink flotec pump

It sounds like the float is stuck. Try pulling the wires coming out of the tank(shake them a little) and see if that will free the float and shut the pump off

Apr 04, 2009 | Flotec 1/4 Horsepower Sink Pump System

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