During our current sojourn at the Braidbar yard at Higher Poynton, one 
of the jobs was investigating the sluggish performance of the macerator 
toilet.

Dismantling revealed a truly startling amount of limescale throughout, 
which mainly had to be chipped out with a screwdriver. The macerator 
blade, the plastic mesh cage and the output impeller were all virtually 
cocooned in the stuff, after 2.5 years of use.

Reassembly resulted in erratic behaviour, especially running on 
endlessly, and the controller/timer circuit board has now been replaced 
- it looks as if the thumping, bumping and pressure washing had 
distressed the electronics beyond recall.

Questions:

1) Why should a permanently wet and not very hot piece of kit collect 
so much scale?

2) How can we stop it recurring, short of stripping the thing down 
every year?

Any thoughts gratefully received.

All the best

Bruce
––
Bruce Napier

[EMAIL PROTECTED]
www.nbsanity.net
07884 003581

Save Our Waterways: visit www.saveourwaterways.org.uk


 
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