Cause Comments Recommendations
Dirty screens or tubes  Periodic inspection and maintenance can eliminate many problems

Should be cleaned by steaming or boiling

Buildup of muck over manifold Periodic inspection and maintenance can eliminate many problems Clean out
Badly contaminated solvent Reclamation procedures should be practiced regularly Distill on the basis of 4-6 gals/100 lbs of clothes minimum
Moisture on filter screens Excess moisture in system Filter powder may have been stored in damp area Drop cake and recoat filter elements
Valve in filter discharge line partially closed Be sure that valve is opened completely Inspect and open completely
Incomplete shuffling and/or backwashing Dirty filter tubes or mechanical failure Inspect and make needed repairs. Clean tubes by steaming or boiling.
Bridging of filter tubes Decreases filter area Clean tubes by steaming or boiling
Sovlent tubes in heat exchanger partially plugged with lint and other debris Restricts solvent flow Inspect and clean

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