Raising the pipe in the overflow at fieldlines

RAISING THE PIPE IN THE OVERFLOW AT FIELDLINES FULL

But until the pond inflow gets high enough to cover the overflow pipe at the top (so no air is introduced), it does not go into siphon mode. This is where you get water drawn from the bottom of the pond. Where the siphon system comes into play is the conventional overflow pipe is connected to a down pipe that extends to near the bottom of the pond on the water side. This is no different for a conventional overflow pipe or a 'siphon' system. The steeper the angle down and the longer the drop (higher head pressure or in this case vacuum), the greater the flow the pipe will handle in siphon mode.

RAISING THE PIPE IN THE OVERFLOW AT FIELDLINES FULL

So once the pipe is full with all air out, assuming the pipe is angled downward, it will flow more water than what the same pipe will in a horizontal position (assuming a vortex does not introduce air at the top).

The 'siphon' volume of water that the pipe can flow is considerably more than regular flow rates because the 'weight' of the water, because the pipe is angled down, will cause the water to flow faster. It can go into siphon mode once the water reaches more than 8' above full pool and the top of the pipe is covered. For example, I have a simple 8' overflow pipe that is angled down to near the bottom of the backside of the dam. The overflow system can go into siphon mode whether it is a bottom draw system or an ordinary overflow pipe. The water simply flows over the highest point of the bottom of the inside of the pipe, which is the full pool level of the pond. Both regular overflow pipes and bottom draw systems work the same way in this mode. With a bottom draw style the water column pressure will cause the overflow water to come from the bottom of the pond instead of the top. This will happen with either a regular overflow pipe or a bottom draw style. It is pretty easy to get a misconception of how the siphon comes into play.Дuring normal rainfall events it is unlikely it will go into 'siphon' mode.Дuring normal rainfall events the pond will rise to the level the water will simply 'run over' the overflow. Talk to the home builder or whoever installed the septic system so that you understand what would work best for your particular situation.My only thoughts would be too large of pipe would make it that much harder to 'start' the siphon effect. It is always best to gather as much information about your particular septic system before you plant anything.

If possible, it is always wise to reserve the area over and near the septic field for ornamental plants and plant your vegetable garden somewhere else. Pathogens, such as viruses, can infect people eating the plants. Vegetable plant roots grow down in search of nutrients and water, and they can easily meet wastewater. Although a properly functioning septic system should not cause any problems, it is very hard to tell when the system is working 100 percent efficiently. Septic tank vegetable gardens are not recommended. Small boxwoods and holly bushes are better suited than woody shrubs or large trees. ItвЂ™s likely that tree or shrub roots will eventually cause damage to pipes. ItвЂ™s more difficult to plant trees and shrubs over a septic field than shallow-rooted plants. The best plants for a septic field garden are herbaceous, shallow-rooted plants such as the grasses mentioned above and other perennials and annuals that will not damage or clog the septic pipes. Either way, it is ok to plant on a septic bed as long as the plants that you use are not invasive or deep-rooted. Sometimes gardening over septic tanks is the only place that the homeowner has to do any gardening, or perhaps the septic field is in an extremely visible spot where landscaping is wanted.

In addition, shallow-rooted ornamental grasses can look particularly nice. It is often recommended that leach fields be covered with meadow grass or turf grass, such as perennial rye. Planting ornamental plants on septic drain fields provide an oxygen exchange and help with evaporation in the drain field area. Gardening over septic tanks is not only permissible but also beneficial in some instances. Can a Garden be Planted Over a Septic Tank? Keep reading to learn more septic system gardening info and whether gardening over septic tanks is recommended. Planting gardens on septic drain fields is a popular concern of many homeowners, especially when it comes to a vegetable garden over septic tank areas.

Raising the pipe in the overflow at fieldlines