- Jul 16, 2020
- 1,893
- Boat Info
- 1999 450 Express Bridge, 9’ Achilles dinghy w/15hp Suzuki EFI
- Engines
- Caterpillar 3126TA
How do you mix the oxalic powder?Toilet bowl cleaner (The Works) has been reformulated, I tried it last spring and it did nothing. After reading the ingredients and googling I found that it was done to be “environmentally safer”. However, you can get similar whitening results with oxalic acid (mix your own or buy Starbrite hull brightener). Oxalic acid powder can be bought locally or on Amazon, it’s used in varying concentrations for brick and patio cleaning as well. Spray it on, wait, then scrub. It’s safe to use on your concrete and painted trailers, and won’t kill landscaping if mixed correctly. It won’t remove calcified deposits, you’ll need the hull cleaner for that but that’s the nasty stuff. It will etch your concrete, paint, and everything else but it will clean the calcified deposits off the bottom of the hull. Cover the ground with plastic, use a respirator, or hire it done by a boat yard later.