Problem??
Hey guys:
Seem—its like keeping the vacuum built up at low hg. is becoming a major problem. I first thought it was the pump—it is OK. I thought the cylinder may have developed a hairline crack—it’s OK. I replaced the plastic tubing and they’re tight. So keeping the vacuum at low hg. is not being maintained. I have a the traditional brass pump with the gravel cleaner tube. I even bought a new one and same problem. The vacuum slowly depletes; it used to be constant. Any simiar problem and what was your solution? Thanks Steve