ROLA-CHEM
®
Flowcell PN 550182 7/11/2019 page: 4 of 8
Check that sufficient tubing (supplied) is available for connecting Flowcell prior to drilling
holes. Additional tubing may be obtained –see parts list for part numbers.
Do not exceed a total of 40' of tubing.
Select installation points in the Pool Circulation System for the fitting that will provide flow
into the Flowcell. The inlet to the Flowcell should be at a higher pressure than outlet of the
Flowcell to provide flow though the Flowcell. Assuming the inlet connector will be located
upstream of the pool filter and the outlet connector will be located downstream from the
pool filter, proceed as follow:
Cut a length of black plastic tubing long enough to reach from the left (inlet)
Flowcell Valve to the installation point on the upstream side of the pool filter.
Install this piece of tubing into the left Valve of Flowcell. (Turn this Valve 'off.')
Cut a length of black plastic tubing long enough to reach from the right (outlet)
Flowcell fitting to the installation point on downstream side of the pool filter.
Install this piece of tubing into the right Valve of Flowcell. (Turn this Valve 'off.')
A length of tube can also be added to the center Flowcell Valve for convenience of water
sampling.
Drill and tap a 1/4" NPT thread into a straight section of water pipe at both installation
points.
Screw in 1/4" MNPT x TUBE fitting and tighten.
Note: use Teflon
tape on pipe threads and
DO NOT OVER TIGHTEN.
Connect the tubes coming from the Flowcell Valves into the fittings.
Open both the left and right Valves on the Flowcell (close the center Valve).
Turn on the Pool's pump system and check for water leaks. Fix leaks as required.
If flow is backwards, the Float will not move up. Reverse the tubes if needed.
Connect the two Probe cables to controller. The pH Probe cable connects to the mating
jack on the bottom of the controller labeled "pH." Push the connector onto the jack and
turn clockwise about 1/4 turn. The ORP Probe cable connects to the mating jack on the
bottom of the controller labeled "ORP."
3.4 Connect Flow Switch
Although the Float is an integral part of the flow switch, it is visible through Flowcell wall
and may also be used as a manual flow indicator. On Controllers with a flow switch
feature, connect the two lead wires as specified in the Controller manual.
3.5 Connect Grounding/
Bonding
Stud
The Flowcell is supplied with a titanium grounding/bonding stud. It is recommended that
this stud be used to ground/bond the Flowcell process water to earth ground.
Grounding/bonding the Flowcell helps to eliminate ground loop problems that could
potentially damage probes and/or cause erroneous readings.
