Similarly repeat for the overflow back into the down pipe. To keep head pressure
to the tank system low, keep the height of the overflow as close to the top of the
tank system as possible.
With the exception of the modules with inlet and outlet fitted,
1 breather needs to be fitted to each top module.
Similar to joining the initial outlets on the base layer, connect to each top module.
Ensure that the breather is terminated 50mm above the outlet pipe.
Seal all the exposed top holes with the plugs provided. |