Deep Cleaning

This morning, feeling better than I have for the last couple of days, but still not good enough to do any reasonably heavy work, I decided that it was time to give our filter coffee maker a deep clean.  It is regularly cleaned anyway, but regardless of how well we treat our water, it still causes the formation of a heavy lime-scale deposit within the heater section of the coffee maker, so that after several weeks it needs to be descaled using a fairly concentrated solution of citric acid.  This involves cleaning all the independent parts first and then passing an almost saturated solution of citric acid through the machine two or three times, before flushing it very thoroughly.  Today’s blip is of the very last flushing of the machine before it was once again making our coffee. 
 
As you may have already learned if you have followed my journal, we drink a lot of coffee here in this house, so that normal domestic machines do not stand up to our usage.  In consequence we use a commercial machine, which is switched on in the morning when we get up and switched off when we go to bed, producing a great deal of coffee in between those times.  Even so this is now the third such machine that we have had, the other two burnt out their heater element, due to lime-scale deposit within it.
 
Today, the nerve has so far not been trapped, but I am still reluctant to do anything heavy, so this and a couple of other light jobs are all that I am attempting.  Hopefully tomorrow I shall be able to do the heavier jobs.