Care & Maintenance

Before using the filter for the first time, rinse thoroughly by suction with hot hydrochloric acid and then with hot water several times so as to remove loose particles and dust. It is important that the next lot of water should only then be added when the previous lot has been completely sucked through. This method of Filtration known as "tearing through" is recommended for the cleaning of filters but should under all circumstances be avoided for analytical work.

Mechanical cleaning is best done from the reverse side of the filter by connecting the funnel with the faucet by means of a rubber tube. Pressure upto 15 p.s.i. recommended.