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I need to climb a set of narrow stairs with a ladder in order to reach the attic from a closet. (I have 2 units). I have to get up there twice a year to flush out the a/c condensate lines. I have other ladders, but this ladder would be dedicated for this purpose. I believe that a 10 foot...

I have a solenoid to control the main water supply in my house. I can turn the solenoid on with a wireless remote, a timer, a motion detector etc. I invented a water sensing switch that if wet will send a signal to cut off the house water. Cannon Water Detector Switch and House Water...