Saturday, May 12, 2012
Why four conduits? Two are for power lines, one is for a telephone line and the fourth is for cable/internet service. Most likely, we won't use the telephone line, but it will be good to have the conduit in place, just in case. What else is buried outside tin box?
graywater recycling, dual-flush toilets and low-flow faucets. Our septic system is thus going to be excessively large, though this means we should have no problem hosting Super Bowl parties.
The 4" PVC waste line leading to the septic tank has two cleanouts, which will let us service the tank. The cleanout closer to the house was the end of the plumbing system when our plumber first laid the pipes before the house's slab was poured. A second cleanout was added closer to the tank in order to allow it to be pumped out periodically. A tank this size needs to be emptied every two years or so to ensure that the drainage field works properly.
A biennial cleaning schedule might lead a more cynical homeowner to create a mnemonic along the lines of emptying the septic tank every time we hold a congressional election. But we're not that cynical.