PEP Filters TOWER CLEAN PACKAGE - Manual (Page 8)

Cleaning Organic and Biological Deposits
Open the filter and remove dirty discs.
Attention – Never open the filter before the pressure has been released.
Arrange the discs loosely on the plastic rope
Prepare a 5% Sodium Hypochlorite solution:
1) Pour 5 liters of water into one of the large containers.
2) Add 5 liters of Sodium Hypochlorite (10%) into the water.
Soak the discs in the solution so that both sides are covered. To achieve maximum
cleaning, agitate the discs several times with a stirring stick.
Contact time with cleaning solution: up to 8 hours
Remove the discs carefully from the solution, put them in the second large container and
rinse them very well with clean water before placing them back in the filter.
We recommend flushing the cleaned discs again in the filter to ensure that all chemical
residues are removed.
The cleaning solution can be used for several sets of discs. As the cleaning activity of the solution
deteriorates, it may be necessary to soak the discs for a longer time.
Cleaning Carbonates and Iron Deposits
Open the filter and remove the dirty discs.
Arrange the discs loosely on the plastic rope.
Prepare a 5% Solution of Hydrochloric Acid:
1) Pour 10 liters of water into one of the large containers.
2) Carefully add 2 liters of Hydrochloric Acid (30%) into the water.
Soak the discs in the solution so that both sides will be covered.
PLEASE NOTE: Carbonates react violently with hydrochloric acid
(foaming, gas evolution).
To achieve maximum cleaning, agitate the discs several times with a stirring stick.
Contact time with cleaning solution: 1 - 8 hours.
Remove the discs carefully from the solution and rinse them well with clean water before
placing them back in the filter.
We recommend flushing the cleaned discs again in the filter to ensure that all chemical
residues are removed.
The cleaning solution can be used for several sets of discs. It may be necessary to soak the discs
for a longer period of time as the cleaning activity of the solution deteriorates.