Constant syphon overflow, the VaultBoy method.
My aim was to create a simple, cheap and effective way to get the water from my display tank into my sump without spreading it out all over my lounge room floor!
I searched and searched and found several designs for "over the wall", "HOB" and "constant syphon" over flow systems. It took me a while to understand the concept of how these things worked because of the many and varied designs, however they all work on the same principle. Once I figured out the principals of their operation it was very simple to design and build one. The principal behind it consists of a weir in the tank, another overflow box outside the tank, a syphon tube which equalizes the level of water in the weir and the overflow box and a drain tube which runs to the sump.
My first attempt to build one was just supposed to be a proof of concept model, after running it
for a while I decided it was good enough for my planted tank and left it in place. It is built
from 20mm high pressure P.V.C. fittings and pipe and easily handled 1000Lph but if you were to
upsize the pipe it will handle much much more. Coming soon, the VaultBoy overflow MkII.
Here is a diagram that shows the principal of operation.
And here is a photo showing the construction.
If there is anything you want to know about let me know I will give you all the detail I can.
Thanks for reading,
Jack.
I searched and searched and found several designs for "over the wall", "HOB" and "constant syphon" over flow systems. It took me a while to understand the concept of how these things worked because of the many and varied designs, however they all work on the same principle. Once I figured out the principals of their operation it was very simple to design and build one. The principal behind it consists of a weir in the tank, another overflow box outside the tank, a syphon tube which equalizes the level of water in the weir and the overflow box and a drain tube which runs to the sump.
My first attempt to build one was just supposed to be a proof of concept model, after running it
for a while I decided it was good enough for my planted tank and left it in place. It is built
from 20mm high pressure P.V.C. fittings and pipe and easily handled 1000Lph but if you were to
upsize the pipe it will handle much much more. Coming soon, the VaultBoy overflow MkII.
Here is a diagram that shows the principal of operation.
And here is a photo showing the construction.
If there is anything you want to know about let me know I will give you all the detail I can.
Thanks for reading,
Jack.
