Put a filter system on it! Some types have inline filters for them, not the huge filters.
Flush the lines from a clean potable water supply
You don't, you replace them.
With a water Jetter which will scour the lines to restore full flow
Flush them through with a solution of sodium meta-bisulphate, followed by clean water.
== Answer== Let water run from every fixture for about 10 min. this should do it.
A 3/4" snake using chain knockers then water jetting to scour the lines clean ( NOT for clay pipe)
Use a phosphate remover in the water and this will dissolve and return the oils back to its natural state. This will control all oils in the water and clean tile water lines in a pool.
The cast of Clean Lines - 1978 includes: Al Byrne as Himself - Presenter
Anyone can clean draft lines. Proper training is required as somewhat hazardous chemicals are used to flush the lines.
clean water is when water is clean and there is no bacteria or bad stuff that can give you a infection.
Normally if there are no roots water Jetting restores full flow by scouring the lines to like new condition
All you can do is drop the tank and remove the water then clean fuel lines, fuel filter and carburettor ( if fitted ) Any water in the fuel will affect the running of the vehicle.