The Corten Water Bowls Will Add A Stylish, Simple Elegance To The Garden. These Attractive Water Features Are Manufactured Using Corten Steel Ensuring A Long Life. the Water Bowls Are Available In 60cm And 80cm Diameter And Come With A Welded Base To Keep The Water Bowl Stable. The 60cm Diameter Has A 22.5cm Ring Base, 80cm Diameter Has A 25.5cm Ring Base. the Corten Steel Develops A Rich, Rust Patina Over Time. This Rust Layer Acts As A Barrier Protecting The Blue Steel Beneath Making The Steel Extremely Strong And Durable. During The Weathering Process The Water Bowls May Have Some Carbon Or Rust Run Off Which Can Cause Staining.corten Water Bowls5 Year Manufacturers Guaranteeadds Simple, Stylish Elegance To The Garden60cm Diameter X 12cm High - 22.5cm Ring Base80cm Diameter X 14.5cm High - 25.5cm Ring Base made From 3mm Thick Corten Steelweathers To Develop A Rich Rust Patinarust Layer Protects Blue Steel Beneath For Great Strengthweathering New Corten Steel Products Can Take From 2 Months To 2 Years, Depending On Ambient Conditions Of Where The Corten Is Placed. Corten Steel Will Produce A Oxide Run-off (rust, In A Very Fine Particulate Form) When Weathering That Will Stain Paved/stone/concrete (any Porous Surface). The Run-off Is Perfectly Normal And Will Decrease Over Time As The Steel Matures.water Bowls - As They Weather Whilst Containing Water Will Get A Residue In The Water. This Is The Oxide Run-off That Is Suspended In The Water. You Can Refresh The Water As Required, With Care Where The Old Water Is Deposited As It Will Cause Staining If Poured On To A Paved Surface (as Above).if Possible, We Recommend Weathering Your Water Bowl On Its Side To Weather Dry, Then Applying A Varnish, Like Owatrol Rust Oil To Seal The Steel From The Water. This Process Will Give The Clearest Water.do Not Scrub The Inside Of The Water Bowls Ever As This Will Expose New Steel And Cause The Water To Be Coloured By The Oxide Particulates, Making