Hi everyone,
I am based in the Caribbean. Can anyone tell me why ASTM D3034 and ASTM D2855 would not be applicable for this region? There are no local sewer jointing standards but the local Approval Agency seems to be against solvent joints. Is there substantial evidence that these joints...
Hi guys,
Does anyone know what the setback distance between a gas line and sewer line should be? Recently, we encountered a gas line about 2 inches away from one of our sewer lines.
We know the sewer line was there before the gas line so they infringed on our space. However, we can't find...
Hi guys,
Anyone experienced with surface aerators for aerated lagoons? How do you space them?
I've heard that they should be placed at the corners and middle to prevent dead zones but Mara has warned against spacing them too close because the eddy interference leads to reduced oxygen...
Hi guys,
I have two questions for you:
(1) Should the static head for a wet well pump be checked from the level of the 'pump-on' float switch or from the 'pump-off' float switch?
(2) If there are points along the pressure main where the pipeline elevation drops below the elevation of the...
I'm a new engineer who is just getting into designs.
I have to design a lift station to handle 0.127cu m/s of flow. I've calculated the horsepower requirement for the pump(s) but folks at the office think i shouldn't have. They say all i need to give the manufacturer is the flow and TDH.
Is...
I'm a new engineer who is just getting into designs.
I have to design a lift station to handle 0.127cu m/s of flow. I've calculated the horsepower requirement for the pump(s) but folks at the office think i shouldn't have. They say all i need to give the manufacturer is the flow and TDH.
Is...
Hello everyone:
I work for an approval agency. We have this development comprising 140 single family units. The development was given approval for use of a double compartment septic tank, sand filter trench and chlorine contact chamber (Clayey Soils). One problem is that the lot size is...
Hello:
I'm working on this project in the Caribbean to supply potable water from a main island to a smaller island about 360 meters away. The deepest point along the selected route is 12m. Locally, 4-inch PE pipe is not available. What else can I use and what problems might I encounter?
I'd...
