On 18 Dec 2009, at 16:44, Neil Arlidge wrote: > Sounds almost as risky as getting a kink in your self pump-out > hose :-) > I have never in ten years had to take our macerator pump apart. I do > have a > bit of heavy duty coat hanger to hand, for inexperienced operators. > This > always does the trick.
Mathematicians (used to) work it out with a pencil and paper. Beeky
