I'm not a pro and they will prolly be on later. From whatviv gathered on here it's pretty normal for a pond to go down faster than normal the 1st couple of years (mine did). Pretty sure they call it wicking. Evaporation will account for lot of it. You can take a bucket of water outside with no holes in it and on a warm day it will go down ½ n inch a day or so.

The people who say I can't do it can just sit the @^#% down and watch me. Friends call me Rusto I also subscribe to pond boss mag. http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=504716#Post504716