RXSOL-20-2047-210 Direct after discharge flush lines and tanks thoroughly with hot fresh water or demi water and recirculate. This is done to bring the freezing point down prior to the prescribed tank cleaning procedure. Demi water will be used if the pre-wash quantity can be pumped ashore. 1) Butterworth the tanks 1, 5-2 hours with hot seawater or freshwater (80°C). 2) Prepare the following cleaning solution in freshwater:0.4 % RXSOL CTC-VOLC Butter worth the tank 1 hour by recirculation with a temperature of approx 70°C. The necessary temperature can be achieved/maintained by means of heating coils, or going via the Butter worth heater. The solution can be used for 1 to 4 tanks. 3) Butterworth the tank for 0, 5 hours with hot fresh water. 4) Ventilate, mop and dry the tank. 5) Instead of recirculation cleaning the RXSOLCTC-VOLC can be as well injected into the Butter worth system (see cleaning method 3).