9. Insert the bypass assembly if it has not been pre‐assembled. See the bypass image below. Note
the pipe connectors, while the other end is what gets attached to the control valve. The 5900e
valve is usually shipped in by‐pass position. Leave in bypass position for now.
Fig 5: 5900e Bypass and Service Mode Positions
10. Lubricate the by‐pass valve o‐rings on the pipe connectors only with silicone grease and connect
the bypass assembly to the 5900e control by sliding the bypass valve firmly into the body of the
5900e. DO NOT USE VEGETABLE OIL OR PETROLEUM GREASE ON ANY PART OF THE 5900e
CONTROL VALVE. O‐rings are OK to lubricate but not the main tank threads.
11. Next lubricate the end‐connectors with some silicone grease and insert them into the bypass
valve.
12. Note that the 5900e is usually shipped in the bypass position. There is a bypass valve knob on
both the inlet and the outlet (Fig 3). You can easily tell if it is in bypass because the two knobs
will be in line with each other (Fig 5). If the valve is in the Service position (Fig 5) the knobs will
be parallel to each other. Make sure both sides are in the by‐pass position.
13. Now install your water pipes to the 5900e bypass end connectors. Make sure inlet is installed to
the 'In" pipe connector on the bypass valve and outlet is on the "Out" connector.
14. Connect some flexible tubing from the drain connection on the 5900e control valve to a suitable
drain such as a septic tank or drain to a sewer. It is OK to run the drain line up and over the
5900e Neutralizer up to 4 feet above the top of the tank. If the drain line will be more than 20
feet, use larger diameter tubing such as ¾" or 1". Note that it is desirable to be able to run the
drain line into a bucket in order to test the backwash flow rate in the future. This is why hard
piping the drain line is discouraged: however, if you do use hard PVC piping for the drain line,
and you are able to remove the hard PVC drain piping and attach flexible tubing should you ever
desire for testing purposes, it is OK to use rigid PVC pipe for the drain. Make sure the drain
tubing is firmly clamped to the barbed fitting with a hose clamp to prevent leaks.
Page 9
5900e Neutralizer Installation & Startup Guide
www.cleanwaterstore.com
Rev 072816
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