This remedy is highly recommended;
with very strong encrustations best only times undiluted "Spray"
Leave for 2-3 hours and then
Heating boiler full and after a few days then with a wire brush
pervade the individual grooves and then dialed deposits raussaugen.
In extreme deposits, this should be carried out more frequently (within a few days).
There should always be the boiler to be cleaned regularly (about 1-3 times a year)
then it is only not to such problems.
Now my heater is burning properly again
(Also with a higher impact factor, according to the Schlotfeger measurement)
