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Calibrating Spike Aerator Drop Spreader Combo

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#1 Mbrun OFFLINE  


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Posted March 01, 2012 - 10:02 PM

I own one the Brinly combo units. Calibrating using the garage floor method is not possible because of the spikes. Calibrating using the drop pan method using rain gutter is not possible, again because of the spikes. And calibrating by repeated dropping of material on a metered distance course is a waste of material ( or potentially harmful to the lawn), time consuming and difficult.

So my questions to those of you that do calibrate your aerator spreaders:

What method do you use?
Do you calibrate for each type of material before you apply?
If you use a drop pan/tray what did you make it from?

I am contemplating a jig to hold the spreader off the ground, putting a drop pan beneath the elevated unit, then using a drill to rotate the spike axle a number of times to represent a given travel distance.

What say you?

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#2 mjodrey OFFLINE  



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Posted March 02, 2012 - 05:22 AM

Mbrun,welcome to the forum.Glad to have you with us.Sorry,I can't help you with your question.

#3 Reverend Blair OFFLINE  

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Posted March 03, 2012 - 08:43 PM

I generally figure that only fear and good judgement can hold us back. I'm not familiar with your unit, but this is what I'd do.

First, I'd make an educated guess based on the size and texture (spreadability) of the material. Then I'd test it someplace where it didn't matter if it was wrong. Adjust as necessary. Let 'er rip.

You can't go wrong on the aeration...too much is never enough, as Mick Jagger said...so all you can miss on is the material. Guess and test. It works for scientists, capitalists, and politicians, so it will likely for you.