Temp tables not getting removed

Greetings, I am working on an HP-UX 10.01 system running On-Line 7.13.UC1 the the ESQL/C and ISQL packages installed. Lately, I've noticed a problem with temp tables not getting cleaned up. Initially I had DBSPACETEMP defined as the same dbspace as my root dbspace. After running about a week, the root dbspace filled to capacity. I looked at the SMI tables, oncheck -pe, and onstat -d and noticed the free space was decreasing but there was nothing in that space. After restarting the engine it went through and cleaned up the temporary table space, and I was back to normal. I created a new dbspace and defined it as a temp dbspace and set DBSPACETEMP to this dbspace in my onconfig file. After restarting the engine, now my temporary dbspace is filling up with temp tables and the space is not being freed. The question is, is there something I've configured improperly or is this something I must accept? If I must accept this, is there a utility available that will search the dbspace and free the unused temp tables while the engine is online?