If a lymph node becomes very swollen and painful, the family doctor may decide to drain it.
A drain plug washer is not necessary unless you have oil leaking from the drain plug.
No
Transfer cases are not like Transmissions they don't have drain pans. They only have drain and fill plugs. Transfer cases do not have filters either.
No they kill then drain out the poison in the bodyparts.
The condensation received and goes down the drain pipe enters a pan where over time it evaporates as the water is a trickle and does not over load the pan in most cases
In order to drain the radiator on a 2004 Pontiac GTO it is necessary to pull the lower radiator hose off. There is not a separate drain plug on this radiator.
If it's the stock motor, there is no drain plug under the crankcase. If it's aftermarket there might be a plug to drain oil from the crankcase, which would seldom if ever be necessary.
The radiator drain plug is at the passenger side rear of the radiator at the very bottom corner. There are two drain plugs in the block, they are very difficult to get at, and usually not necessary.
Most professional plumbers don't use household chemical drain cleaners. If a drain is clogged badly enough to call a professional, it is usually necessary to make use of a drain snake.
On the bottom side of the cases either in the center or at the back (towards the rear wheel side of cases).
Drain and replace the fluid, inspect and replace the breather if necessary.
In most cases you only need to drain a few qts. This is done to avoid making a mess in the process.