Sump pump control circuit
Sump pump control circuit
(OP)
From a reliability standpoint the low level electrodes on our sump pumps tends to get corroded after a short period of time primarily due to the type of material/chemicals that are routed to the sump pit.
The cumulative effect is that the pump never shuts off and continuously runs empty (pump life issue). I was considering modifying the control circuit to include a timer along with the high level electrode. Based on the volume of the sump pit I would set a running time after which the pump would shut off. In the event that flow to the pit is increased the high level electrode would restart the pump.
Any views?
The cumulative effect is that the pump never shuts off and continuously runs empty (pump life issue). I was considering modifying the control circuit to include a timer along with the high level electrode. Based on the volume of the sump pit I would set a running time after which the pump would shut off. In the event that flow to the pit is increased the high level electrode would restart the pump.
Any views?





RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
Then investigate a sensing system that works more reliably.
Subvert the dominant paradigm... Think first, then act!
RE: Sump pump control circuit
From a reliability standpoint the low level electrodes on our sump pumps tends to get corroded after a short period of time primarily due to the type of material/chemicals that are routed to the sump pit.
///Essentially, I agree with those postings suggesting a noncorrosive float to control the float switch, because of this control approach simplicity.\\\
The cumulative effect is that the pump never shuts off and continuously runs empty (pump life issue). I was considering modifying the control circuit to include a timer along with the high level electrode. Based on the volume of the sump pit I would set a running time after which the pump would shut off. In the event that flow to the pit is increased the high level electrode would restart the pump.
///There could be many unnecessary starts and stops wearing out the motor and contacts.\\\
Any views?
RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
RE: Sump pump control circuit
Their are switches available that will detect a differential pressure of 0.072 Psi. They are being used in the Steel industry type "Sumps" with excellent reliability, and very cost effective.
RE: Sump pump control circuit
We make our own solid state level sensors that are far superior to anything that you could possibly purchase.
We use a bolt or piece of metal for each set point. Choose any metal you like, titanium, hasteloy, 316 stainless, etc. Cheap because all you need is two small bolts. We set this bolt through the side of a PVC or Polyethylene pipe leaving only the head of the bolt exposed on the outside of the pipe. Connect a single wire to each bolt, then pot the whole thing with an expanding water proof expoxy. Connect this to an impedence type sensor available from anyone $100.00. The sensor will last virtually forever.
Many may think this weird to make something, but the truth is that it allows us to make something higher quality than what could be purchased, and cheaper too.
We originally designed this for a utility looking to replace sump level detectors that were always being interefered with by debris.
Richard Neff
Richard Neff
Irrigation Craft
RE: Sump pump control circuit
RE: Sump pump control circuit
good one there pump designer, you bring back memorys of using pvc conduit stainless steel "clothes line wire" and fibreglass to make level, ph and such probes as a apprentice in acid and fertiliser plants.
With the idea of a timer I would be concern about relying on that alone
a) over running when empty will not enhance the pump and or seal life
b) if it's a sump pump then it will get surges both short and long
If acheivable another simple solution is the bubble tube using a needle valve, rotameter and pressure switch wth a bit of a differential much as Rodmill has described. You can add a guage to indicate the level. (use 2 and a differential guage for density.)
All the best
Don
RE: Sump pump control circuit
RE: Sump pump control circuit
Our contact is Ken Wagner at 847-465-6100
We use model S196156115
Did not send you to their site because their website looks like they spent a million bucks on it and got screwed, cannot find anything.
PUMPDESIGNER
RE: Sump pump control circuit
http://www.tycovalves-la.com/NA/YAWMC-04...
etc. for more info