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.