Drain Commissioners are statutory officers and their duties are quite important actually. Those include flood prevention and stream protection for urban and agricultural lands. That means they need money for all that and since the different parties have different views and approaches to the question, it does make a difference whether the officer is from one or the other.
Avoid putting solid matter down drains. Periodically (1-2 times a month), a drain cleaner should be used. About once a year, it's a good idea to flush the entire drain.
The height of the drain really doesn't matter as long as the hose from the dishwasher has a section that is at least half as high as the dishwasher.
For convenience. A drain removes effluvia from of the present environment, which protects people from decaying matter, viruses, and bacteria.
Drain-O, not the best for the fish or anything for that matter, but cleans just about anything.
An S trap would go through the floor. A P trap goes through the wall. As long as the drain is below the bottom of the sink, it should drain. Distance between the bottom of the sink, the trap and the drain does not matter, it just changes how much water stay in the drain. Normally it is just in the trap, but it can be above the trap if circumstances cause the trap to be lower than usual.
Is this a sand filter? How many valves control the flow of water? It appears the b/w valve is defective.
If your pool is above ground it does not matter, But if your pool is in ground and you drain it it will act like a boat and float if the water table rises.
This should be done daily, as condensation and contaminated matter could be present.
Don't seal it. It has to hale drainage holes for water to drain out. You can paint if you want. It doesn't matter.
If there is no drain valve at the radiator you can drain the system at the drain valve on the boiler
The difference between a gully trap drain and a floor drain is placement. A floor drain is in a floor, a gully trap drain goes on an external wall.
A reversible drain is a type of drain that some bathtubs have. It means that the tub can face either way, unlike a bathtub with an end drain or center drain.