Semipro said:...Of course, once you've got them out there it may be worth the cost just to have them pump it out...
Yeah...the only access I have to my tank is to remove a manhole cover in my lawn and pull the tank access cover out from a couple feet below. At that point, I might just as well have the darned thing pumped, rather than spend any time dipping it to make a decision. Different tanks have different access points. Mine has but one. I think it would be cool to have a "probe" access pipe through which I could use such a tool to monitor what's going on in there, but I'm not gonna pay to have one put in. Rick