Sheepsfoot roller is insurance that the soils will be compacted to the best ability. Not every one gets or believes in insurance. Good clay soils can be compacted without sheepsfoot rollers. BUT all one has to have is one small vein of sandy or gravelly soil and if not handled properly one gets pathways between clay layers (lifts) for leaks which is why a lot of ponds leak. Water under pressure seeks the path of least resistance and once it finds a pathway the leak volume often increses due to various factors. Do a little searching here and you will discover ALOT of leaky ponds.


aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management