Manx Utilities is asking dog walkers not to leave dog mess around the Island's vital water supplies.
It says recent inspections around the Island's reservoirs have seen a rise in dog fouling, particularly at Clypse, Kerrowdhoo and Cringle Reservoirs.
The organisation says dog walkers should clean up after their pets using bags and bins provided.
It says uncollected dog waste can contaminate water catchment areas and it'll put up temporary notices and signs to remind people.
All designated beaches pass water tests, says government
Warning over scammers impersonating Ramsey charity
Two ferry sailings rescheduled in face of bad weather
Island's top boxer announces huge comeback on Netflix
Warning issued as firefighters tackle Union Mills blaze
Grate job opportunity - for trainee cheesemaker!
Traitors... tonight you will murder a meal!
Minister says government will prepare better for bad weather