For situations where flows lower than 200 GPM are needed (the inserts should not be used above 200 GPM) you can use the LPD-250 Low Flow Inserts to assure proper dechlorination. The LPD Low Flow Inserts are very easy to install and increase the flow through the feed tube assembly so that an adequate tablet dissolve rate is achieved.

For example, flushing a 4 inch line at 3 FPS requires only 120 GPM ­ or draining a swimming pool with a portable pump where the flow rate is usually in the range of 100-150 GPM.

• Orient the LPD-250 with the feed tube in the vertical plane, fill it with 10 or 11 tablets and turn on the water. No other adjustment is required and it will function from flow rates of about 20 GPM to 200 GPM.

• Measure the Flow Rate with Low Flow Inserts installed with a pitot probe installed.

• With Low Flow Inserts installed, the pitot probe will indicate a flow rate somewhat greater than the actual flow rate because of backpressure caused by the inserts.  However, the pitot probe reading is suitable for monitoring the flow rate.  If an accurate measurement of flow rate is required, an inline flow meter should be used.

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PURCHASE LOW FLOW INSERTS