Bubbles could indicate more than "normal" seepage. OR bubbles could mean there is some form of natural gas escaping and bubbling up. One pond near me was built over a old gas well and after 10 yrs a small amount of bubbles still constantly flow to the surface.
"Will if ever seal on its own?" Fathers think they always know best, but in numerous instances fathers can still learn a few things. This may be a learning experience for you and your father. Come back and tell us when the leak or noticable seepage stops. Self sealing leaks are dependent on soil structure where leak occurs.
In my opinion, sheepsfoot rollers are used as pond building insurance. Insurance is not always fool-proof either.
Often in ponds where the leak/s occur higher near the surface as opposed to deeper near the belly of the pond, seepage continues until water level drops to a certain level and then water level seems to stabilize at that level.
Last edited by Bill Cody; 03/18/08 08:21 PM.