Quote: Yup! I can keep adding eggs to the cooler bator because it holds so many, and move eggs over to theLG for the humidity at hatching.
I started with the LG and quickly realized I had become a hatcha holic
so gathered all the used parts possible and tinkered away. I haven't dusted it off for this year yet. I still have about 150 birds around.
Until I can get a pic-- Henny Penny is my homemade coolerbator. The bottom is l
ined on the sides with 12-14 mason jars of water with an open channel in the middle from end to end. Fan sits on one end and lightbulb at the opposite end with WHT hanging over it. A section of plastic coated wire sits on top of the jars. A wire basket fits on top of this so I can lift out all the eggs at once and fiddle with the guts of it as needed: change the light bulb or put in a new fan.
The lid is plywood with a square cut out and an old picture frame caulked into place, complete with a glass pane so I can have a great view. Usually this is askew to get the temps right== lots of heat loss, not very effecient, but works great for hatching.
I never add water, just dry hatch; ANd my only recommendation is add vinegar to the jars of water before sealing to prevent any odd growths.