We're planning to spend next week higher in the mountains of Mexico. Here we will find virtually no services. Most interesting, both RV parks don't have dump stations. The logistical cogs in my head creak into motion as I attempt to figure out how many days I can "reasonably" go without dumping my 38 gallon black tank. Black tanks contain human waste, if you weren't familiar with the term.
The reality of that 38 gallons is it takes about 3 gallons of water as a base. So it's really about 35 gallons. Then there's the fact that the RV gets a bit ... ripe ... at around 55-60% capacity. That's around 17 gallons. We tend to use about 5 gallons of capacity a day, so that's three days of odor free usage. We have tank enzyme treatment, but we're running low, as it's not sold in Mexico. We may splurge with our rations and double up while in the mountains.
There are two RV parks, one for three nights and one for two nights, followed by a full service RV park elsewhere. With planning, we should be fine with our tanks. We've scouted a dumps station we can hit between RV parks, so theoretically we won't need to break camp and go find a place at the first site: three days - move and dump - two days - new RV park with services. Will the dump site be open? Will we fit? We assume so, but it's Mexico. It is what it is. We may have find ourselves searching for a hole that morning.
These logistics are dreaded by a lot of people, who also dread dumping tanks. There are tales of horribly disgusting accidents, and for most older couples, the men almost always end up doing this work. I kinda like it. I've got clear connectors on my hoses so I can see the state of my tanks, potential clogs, and the overall flow. I don't mind the smell and I've never had a black tank accident. Maybe my attitude will change when my hands are covered in other peoples business.
As I write this, I am waiting for the propane truck to arrive. This will be my first propane fill in Mexico. I have two, 30 pound propane tanks and we've completely used one. We use propane primarily for cooking and hot water, and almost nothing for heating this trip. Our maiden voyage of ten days during the winter saw us blow through both tanks, so usage really depends on the season. We're expecting cold temperatures in the mountains, with no power, which means we'll be using the propane heater. This seemed like a good time to fill that empty tank, while contemplating how to dump the others.