Mistake Proofing

Improvement Insights Blog

Posts tagged "Mistake Proofing"

Hunter Pro-C Controller Problem

My water bill recently doubled. Turns out it’s a design flaw in my Hunter Pro-C controller.

A while back, I set some of my zones to zero minutes.

hunter zero image

But, if I accidentally hit the minus sign one more time, the controller goes to SIX HOURS:

hunter zero image six

It was a royal hassle, but I managed to submit an improvement suggestion to Hunter:
There should be no run times below ZERO! Duh!

I had  Denver Water come out to show me how to read the meter.

  1. Meter reader basically said: “Meter’s correct. Fix your controller” and left.
    What if they spent 5 minutes helping homeowners check their controller to find the problem?

Posted by Jay Arthur in Jay Arthur Blog, Six Sigma.

The Plastic Breakfast Burrito

I had a breakfast burrito at the Marriott in San Diego last week. I cut it in half and took a bite. I realized there was somthing amiss when I pulled out a strip of plastic. I tried to pull it apart, but it wouldn’t break.

I showed it to the cafe staff and she said: “It looks like an onion.” But a cooked onion would pull apart; the plastic didn’t. I got my money back.

I can imagine that if a machine is cutting onions into strips that it would cut plastic as well. Then the plastic just looks like an onion strip in the egg.

Posted by Jay Arthur in Manufacturing, Service, Six Sigma.