PAUL
®
station
manual
page 25
PAUL Station Manual 2019-08-02
Figure 17: sample protocol for maximum filtration test
6.3 Monthly
6.3.1 Cleaning of the FWT
Fresh Water Tanks are common and well known installations. Billions exist
worldwide, so their maintenance basically is independent from the treatment
method and thus has nothing to do with the
PAUL
®
waterbackpack.
However, we would like to remind users that it is necessary to clean and disin-
fect these tanks from time to time. We recommend to do this once per month
using a solution with 5 ppm up to 50 ppm
available
chlorine (ppm = mg/L).
Hints on chlorine dosing are presented in chapter 8.1.
First, the tank should be cleaned manually. Then, the solution can be used.
Contact with the tank should be 30 minutes. Afterwards, flush the FWT with
some filtered water.