Caring for the Black box

Black tank rules: 1. Never leave black tank valve open. Liquid accumulation is needed to liquify and remove solids. 2. Use plenty of water when flushing, especially solids. 3. For keeping the tank clean, use GEO method, (add 1 C Blue Dawn, 1C Liquid Calgon, 1 C bleach after dumping black). 4. Dump tank when flushing commode give you a 'burping' sound. Grey tank rules: 1. OK to leave valve open. 2. For dirty sensors in grey or galley tank, use Geo Method. For real dirty sensors, make sure your tanks are 50% full of liquid, Add Geo stuff above. Drive to next destination. Fill tanks, then dump them Black first. If you fill with 5 Gallon bucket you can be pretty accurate on how full your tanks are. Once clean, keep black closed and grey open. Use plenty of water when flushing solids. I live in RV full time, I choose one day out of the week to empty, usually on a Monday