Hydrotech Precision-PWS 12-12 OWNERS GUIDE - Manual (Page 33)

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3. The drain may be operated automatically by installation of the Optional
Automatic Electric Drain System. See PWS AED-1 Automatic Electric
Drain Kit Installation in the Optional Accessories Section for a diagram
of the kit and installation instructions.
4. With the manual drain valve or the Automatic Electric Drain it is important
to develop a regular maintenance routine. Every two weeks or 50 gallons
of distilled water take a look inside the boiling tank when the water distiller
is cool.
5. Check for scale build up on the walls of the boiler tank and the heating
element. The heating element is the most critical. If there is 1/8” of build
up or more on the heating element, then it is time to clean the boiling tank
using the descaler cleaner. This process is described in the next section.
6. After checking the boiling tank every two weeks for about three months,
you will be able to set up your own schedule as to how often the boiling
tank needs to be cleaned with the descaler cleaner. Distilled water
quantity use and raw water quality will determine your schedule.
Cleaning the Boiling Tank using the Cleaner Descaler
1. Turn all switches off and allow the water distiller to cool down.
2. If the water distiller is equipped with an Automatic Electric Drain, close the
ball valve behind the water distiller head.
3. Remove any loose scale from inside the boiling tank by hand through the
boiler lid. Remove the drain strainer and inspect for sediment or plugged
holes. Clean if necessary. See the Boiling Tank Strainer Removal
Diagram below to see how to remove the strainer.
Boiling Tank Strainer Removal Diagram
4. Remove the filter canister and place the sterilization tube onto the coil tube
to by-pass the storage tank. See Steam Sterilization of Water Distiller
Head in this Maintenance and Cleaning section for more details.
DRAIN STRAINER
IMPURITIES
DRAIN OUTLET
DRAIN STRAINER DETACHED
FROM THE DRAIN HOLE