Hot water cylinder leaking from the pipe coming out of the top. Should I try to fix it or call(02)

Hot water cylinder leaking from the pipe coming out of the top. Should I try to fix it or call(02)

Video Screenshot Gallery: Hot Water Cylinder Leaking

Hot Water Tank is Leaking? Top 5 Fixes Repair and Replace - YouTube
How To Fix A Leaking Hot Water Cylinder at Dorla Walker blog
Hot water cylinder leaking from the pipe coming out of the top. Should I try to fix it or call