Construction of the front wall is proceeding quickly … we are now on our third (and hopefully final) row of tires! We have packed 75 out of a total of about 100 tires for this wall. Over the weekend the kids helped, and we moved along quickly! Everybody is tired, and I think the kids are looking forward to getting back to school (they had today off).
We ran out of tires today, and had to go scrounge 12 more to keep going tomorrow. We are only going to have to track down another twelve or so tires to finish packing tires for our building. We’ve gotten pretty efficient at packing tires, but I have to say I will be happy to pound my last tire on this project. By the end of a day I am tired!
Some random thoughts on filling tires … I think I said this in the last post, but do not fill tires in the heat of summer if you can avoid it. It is a far easier job filling tires in cooler weather and you will get more done (unless you are actively trying to lose weight). We used a slightly smaller tire on the front wall (225′s instead of 235/245′s) and we found it faster going. These smaller tires simply need less dirt to fill them, and consequently the work goes faster. I would definitely consider smaller tire sizes if I were starting my project.
Some notes on the front wall to date …
Sewage connection (Required by the Building Code)
There are 3 sewage pipes out the front of the building.
- kids bathroom
- ensuite bathroom
All pipe and fittings
- require 2% grade for horizontally laid pipe (1/4″ per foot)
- must be certified to CSA B182.1 standards
- 4″ diameter
We may not use all of these pipes but given that we will not be able to add these pipes later we placed them in the wall and will simply plug the ones we do not end up using. We are running these pipes to an existing septic tank so we shot levels at the tank and at the locations where the pipes cross the wall. We then determined the relative heights required at each location to achieve a 1/4″ drop per horizontal foot traveled to the tank inlet. We simply put a 4-6″ gap between two consecutive wall tires where the pipe exited the building and embedded the pipe in concrete to make sure it did not get knocked out of position down the road. All of the sewage pipes fell in the base round of tires.
There are 6 gray water pipes out the front wall. We do not intend to use all of these, but here again we wanted to make sure the outlets were available if needed. Essentially, I am trying to make sure there is a pipe at each planter and one for the cistern. We ran two sets of 3 pipes each; under the first round of tires, and through the second round of tires. One set will simply not be used but I am not sure at this point what elevation I want so I ran both sets! Ultimately, these pipes will handle any overflow from the planters and dump it into the septic tank. Ideally, there will be no overflow.
We have decided to run an electrical line out to what will be our front yard. We do not know what we will use this for …
We also decided to run one potable water line out the front wall. We placed this line so that it was elevated above and did not cross the sewer line.