we've a round pond, 6' in diameter. I spend about 10 mins every 3 weeks
cleaning the pump filter in the summer and two mornings a year in spring
pulling out all the excess weed, plants etc. Also about half an hour every
couple of weeks in summer clearing off the duck weed. really it will vary
depending on how big your pond is and how rampant your plants are. (Also the
fish are fed and checked each day in summer)
Hayley