Quote:
Originally Posted by the999bbq
I do burry the standard 1.5L plastic soda bottles as well, with loads of holes in the sides and upside down without the cap ----but there are always bottles that remain half full as the end of the season nears. ------------
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Here is the physics:
Water flow cannot be constant in this setup. Hydrostatic pressure is higher when the bottle is full, water will flow more. When the water level is lower the pressure will get less and less.
dcarch