Jennychem Motorhome and Caravan Cleaning Products (5L): Achieve a flawless shine and bid farewell to unsightly marks, leaving your caravan looking as good as new. Our yellow caravan water cleaner removes algae and black streaks on your static caravans, campervans, cars, and more vehicles. The cleaner dissolves in water, removes hard stains caused by degrading the window rubber seals, and even cleans the seals themselves. Dilute our awning cleaner 10:1 for general surface cleaning and to remove strong grime use at a 1:5 ratio. Use a pressure washer, bucket, sponge, or pump sprayer to remove the dirt. This cleaner is effective for tree sap, green furry algae, and moss. — Directions to Use: Use a neat sponge or cloth. Dip in the diluted solution and spray on the vehicles. Leave for 3-5 min and rinse. Note: Rubber seal cleaning should be repeated until the rinsing water runs clean.