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Topic: Arduino controlled water pump (Read 1 time) previous topic - next topic

mishari

Hi,

I have a property with a 1m deep pond that is used to supply water for irrigation. When it rains, the pond fills up to the point of overflowing which can cause the property to flood up. What I would like to do is pump water out of the pond until it reaches a certain level if rain is expected on a certain day (it takes several hours to pump water out), stop pumping if the property starts to flood up. There is about 20 meters between where the pump is located and where I can detect flooding and both are within wifi range. I'm debating whether to use a barometer or to just use weather underground as a datasource. The pond itself is silted and considered to be quite "dirty" so whatever I come up with for water level detection should not have any parts that can get clogged. I need suggestions on how to detect water level, how to forecast rain, and how to get flooding information across.

Thank you.

Quick5pnt0

#1
Feb 02, 2013, 11:26 am Last Edit: Feb 02, 2013, 11:30 am by Quick5pnt0 Reason: 1
Personally I wouldn't waste the time trying to predict he weather. Instead an easier solution would be to use a simple water level float switch that clicks the pump on the second there is an water level change. If adjusted correctly the pump will start running just after it begins raining and should be more than enough to counter the falling rain. Worst that happens is you need to buy a bigger pump. With that solution you wouldn't have to rely on the weather forecast being correct, wifi connection working or even the connection to the weather site working.

PeterH

I didn't quite follow why you said "stop pumping if the property starts to flood up" but apart from that it seems to me that what you want is a bilge pump with the float switch used to set the level you want to hold the water at.
I only provide help via the forum - please do not contact me for private consultancy.

mishari


I didn't quite follow why you said "stop pumping if the property starts to flood up" but apart from that it seems to me that what you want is a bilge pump with the float switch used to set the level you want to hold the water at.


If the area outside the pond is already flooded, what that means is that any water that is pumped out of the pond will ultimately just flow back into the pond, which is why it's better to just stop and wait until the water drains out a little before we start pumping again.

I'm thinking of the issues regarding a physical float switch. Will it work correctly in a body of water as big as a pond?

PeterH


If the area outside the pond is already flooded, what that means is that any water that is pumped out of the pond will ultimately just flow back into the pond, which is why it's better to just stop and wait until the water drains out a little before we start pumping again.


Now I'm a little unclear what you're trying to achieve. If you're simply pumping the pond out to the surrounding land, couldn't you simply install an overflow pipe?

I'm thinking of the issues regarding a physical float switch. Will it work correctly in a body of water as big as a pond?


The typical commercial float switch is actually a tilt switch which floats on a tether. It will work in a body of water of any size, as long as the surface is calm and there is no significant water flow.
I only provide help via the forum - please do not contact me for private consultancy.

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