QUESTION:
I bought a used portable sanitation service truck last winter. In the spring, we noticed after we dump the sight glass remains full. So I opened the manhole cover to check the inside of the tank and there was more than a foot of solids left in the tank after dumping. I have no idea on how to clean the tank. Do you have any suggestions?
Jerome Foscett
Chicago, Ill.
ANSWER:
There are a few things you can try, none of which are very pleasant. The older the solids are, the more compacted they will be, especially after sitting for a winter. But, let’s
