Spring thaw drainage dc pump Answered
Every year we get large puddles around our property in low lying areas. Our front sidewalk also dips down at our steps and gets a huge pool. I could shopvac the puddles but the problem is they REFILL slowly but consistently until the grass dries out during the spring thaw. This is a big problem because in the morning these large puddles are ICE and are slippery as anything. Then they thaw during the day and the cycle repeats - for a month or so.
So I took an old cheap craftsman tool box and put in a 12v5A battery and a 12v5A pump. The pump uses 3/8" clear hose that you'd see coming from a condensate pump. I put in a 20 mesh filter reservoir thing to keep out small particles from the pump.
I ran it and WOW - not only did it work perfectly but even my wife thinks it is "cool". The pump works at about 1 gallon a minute. I purposely did NOT want a high capacity pump. I wanted to move the water slowly and allow it to drain back in. Also if you move water slowly you have way less problem with sucking in leaves, etc. It just quietly does its thing and in about 1/2 hour the puddle is gone. The problem is - overnight the puddle comes back.
So I'm going to wire in a dial to slow the rate of flow down.
I'd also like to make a water sensor switch. The water has very little salt in it so no electrolytes to make good current. I tried zip tying two wires to the mouth of the intake and wiring them between the battery and pump positive side. No dice.
Does anyone know how to make a water activated switch that would work here? If I could get that done I'd have both flow rate and auto on/off. Sweeeeet.