Installing Toilet and Tank Requirements
So I'm planning on doing some upgrading to my old trailer (1978 Scamper) by getting rid of the old recirculating style toilet and installing a new one along with a new black tank (since the toilet its...
Forum Discussion
21 gallons is probably not bad for the black tank. We have a 35 gallon black tank and with 3 people we can easily go more than a week without dumping. Now regarding the grey tank, I'd go bigger if you can. We fill our 35 gallon grey tank every couple of days even if not using the shower. Of course it depends on your usage. We do all of our dishes in the camper and that creates most of our grey water.
