Why does the pump move and flex when it is pumped?

This is normal operation. The drive motor and the pump are not on the same centerline. Therefore the force vector is at an angle between the drive motor ant the center of the pump, causing some side movement. Under normal situations it poses no problem.

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The toilet makes grinding and squealing sounds when it is running; what's wrong?

This was most common on the PHII/PHEII units that were manufactured before the cartridge seal pump series (1200C).

In the early electric drive units, the drive arm squeaked against the pump housing regardless of how much grease was applied. The cure is to convert to the 1116BW drive arm kit - the material has been changed in the drive arm to one that is compatible with the material of the pump housing. In manual units, the most common source for squeaking is the bushing area just beneath the seal. As the piston rod pumps up and down, the rod squeaks against the bushing area. The cure for this is to put SuperLube on the piston shaft; we also recommend a TWK.

Another area for squeaking is when the bushing area wears and the corners of the piston scrape against the cylinder bore. Sometimes vegetable oil put into the toilet bowl will stop the squeak temporarily.

For a permanent cure, the pump housing must be updated to the 1200CW.

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The bowl will not empty when I flush it, especially solids; what's wrong?

Usually it can be attributed to either the 1228CW flapper valve or C253 joker valve.

In some instances it may have debris caught in the flapper valve, or in the joker valve, which may be displaced by continued pumping of the head. Then remove the discharge fitting at the rear of the pump (1222AW) and remove and clean the joker valve and reassemble.

If that doesn't work, do the same with the flapper valve (1228CW). If neither works, replace both parts.

In some installations it we have found that a small amount of back pressure will improve the operation of the toilet. This is accomplished by adding a vented loop in the discharge line, approximately the height of the toilet bowl.

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