1. Insert the seat squarely in the port with the
at side facing up and the concave side facing
down.
2. Press the seat into place with a wide blunt
tool that will allow you to distribute pressure
equally across the seat while pressing it in
place.
3. Reinstall the unloader valve and tighten.
Pump Servicing
Unloader Valve Installation
Chemical Injector Removal
1. Remove the hose barb and inspect the o-ring
for damage or wear and replace if necessary.
2. Remove the ball and spring. Then clean them
and the barb of calcium build-up.
Chemical Injector Installation
1. Insert ball into the injector barb followed by
the spring
2. Place the pump so that you can place the
assembled hose barb into the injector port
without the components falling out.
3. Tighten down the injector barb until snug.
Do not overtighten because the barb can easily
break or strip out the threads.
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