Fortunately for me, I have not promoted it and found out
why it is better not to. A book I purchased in 2004 would have
to be the most cryptic book in my personal library - so much so, I
had little interest in it. Also, I was persuaded into buying a
water alkaliser 10 yrs ago that sits out of use as a boat anchor
when I gained better knowledge. Forget the pluming alterations,
expense and inconvenience - you don't need one!