Manx Utilities is urging residents not to let their dogs swim in the Island's reservoirs.
The organisation says it's received reports of dog owners ignoring signs advising of the rules and allowing their pets to go into the waters.
MUA warns anyone caught not following the rules could face a fine of £2,500.
Officials are urging members of the public to not spoil the areas for the vast majority of responsible dog walkers.
Garage warns of pothole which broke two wheels today
TT riders will miss special Bray Hill tree
Inflation steady at 3.3 per cent
Less than one percent of buildings on council blacklist
Senior Tynwald committee to look at healthcare funding
Government apologises after child benefit problems
Noel Edmunds gives more details on IOM wine
Consultation asks about protecting Douglas Head