I'm not sure I understand the difference in "ease of clean-up" with water-based paint.
1. Rollers are disposable either way.
2. You hardly use a brush, so a chip brush is fine.
3. Washing off a copper-laden brush with water, either on land or over a sink, is basically illegal. Copper discharge to the sanitary sewer is restricted to PPM levels in the sewer ordinance. So while household disposal is basically exempt, washing off a brush is environmentally wrong,
and the ability to wash out is irrelevant.
4. It shouldn't be on your skin--that is what gloves are for.
5. It's going to dry onto the tray either way. Same with the mixer. And washing them is environmentally wrong--see 3.
So basically, no difference. Bottom paint is not house paint. The ingredients are toxic and should not be washed down the drain
. Just let them dry and pitch them.
(Charles County, MD. Many areas are more strict, and industrial limits are more strict.)
(4) Local Limits
The following pollutant limits are established to protect against pass
through and interference. No person shall discharge wastewater
containing in excess of the following: (daily maximums)
PARAMETER DAILY MAXIMUM (MG/L)
Total Arsenic 3.45 mg/l
Total Cadmium 1.37 mg/l
Total Chromium 1.78 mg/l
Total Copper 2.14 mg/l
Total Cyanide 0.94 mg/l
Total Lead 5.01 mg/l
Total Mercury 0.008 mg/l
Total Nickel 36.94 mg/l
Total Silver 0.45 mg/l
Total Zinc 1.21 mg/l
Total Molybdenum 0.25 MG/L
Total Selenium 0.05 MG/L
BOD5 350 MG/L
Total Suspended Solids 400 MG/L
Ammonia 45 MG/L