The water evaporates quite a bit so I'm adding clean water at least once a week to keep the water at the filter level.
(The water; evaporates; quite a bit; so I'm adding clean water at least once a week to keep the water at the filter level) (I; 'm adding at least once; clean water) Context(I 'm adding at least once,List([36, 72))):(I; 'm adding at least once to keep; the water; at the filter level)
I 'm adding at least once,List([36, 72))
The water I I
evaporates 'm adding at least once 'm adding at least once to keep
quite a bit so I'm adding clean water at least once a week to keep the water at the filter level
clean water
the water at the filter level