13 Barnstead |Thermolyne • 800-553-0039
examine the inside of the canister for any residual deposits. If residual deposits are observed, clean the
system as follows:
A. Turn system off and disconnect electrical power.
B. Shut off feedwater valve.
C. Relieve system pressure by opening the drawoff valve and remove cartridges.
D. With the cartridges out of all of the canisters, wash the inside of the canisters and the inside of the
heads with soap or detergent, using a sponge or clean cloth. Rinse out the canister and the heads
with clean water several times to remove the detergent residues.
E. Make up the following disinfectant solution:
Bleach: Add one liter (one quart) of bleach (5.25% sodium hypochlorite) to fifteen liters (four gallons)
of water to make a 0.3% solution.
WARNING
Avoid splashing disinfectant solution on clothing or skin.
Ensure all piping connections are tight to avoid leakage of chemicals.
Always depressurize chemical lines before disassembly.
Ensure adequate ventilation.
Follow carefully the manufacturer’s safety instructions on labels of chemical containers and
material data sheets.
F. Partially fill each canister with the disinfecting solutions noted above, and reassemble the canisters on
the unit.
G. Remove the E-pure
®
final filter from the unit. Do not attempt to sanitize final filter with chemical
solutions.
H. If an external pressure switch or pump protector is used, disconnect from the receptacle on the left
side of the pump housing, and install the jumper plug provided.
I. Disconnect the feedwater line at the source. Connect feedwater line into disinfectant solution
container.
J. Connect power to the unit and start the pump.
K. Drain off some solution through the drawoff valve until a steady flow is achieved. Discard this solution.
L. Recirculate the disinfecting solution for about 1/2 an hour. Then open the drawoff valve and allow the
remaining disinfecting solution to enter the system, directing the output to the drain.
CAUTION
Do not run the pump dry; dry running will damage the pump. Always make sure you have
an adequate volume of feedwater.
M. Turn the unit off and disconnect the power.
N. Leave the drawoff valve open to depressurize the system and to drain as much of the system as
possible.
O. Carefully remove all the canisters from the system and discard the solution remaining from the
canisters. DO NOT RINSE THE CANISTERS.
P. Install fresh cartridges in the system as indicated under Cartridge Replacement. DO NOT REINSTALL
USED CARTRIDGES. (They contain large amounts of bacteria).
Q. Reconnect the feedwater line to the feedwater source and reconnect the pump protector or pressure
switch to the receptacle on the pump housing. Save the jumper for future use.
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