1 A ratio variable, has all the properties of an interval variable, and also has a clear definition of 0.0. 2  When the variable equals 0.0, there is none of that variable. 3  Variables like height, weight, enzyme activity are ratio variables.4  Temperature, expressed in F or C, is not a ratio variable. A ordinal variable, is one where the order matters but not the difference between values. 2  For example, you might ask patients to express the amount of pain they are feeling on a scale of 1 to 10. 3  A score of 7 means more pain that a score of 5, and that is more than a score of 3.
Also be sure a hole has not been punched in the bellows as this will cause a vacuum leak. The second thing that causes breaker to blow is simply an old worn out electric pump motor, especially in salt water applications. The third cause is that the holding tank is full and the vent line is plugged.
Some indications of septic system problems, such as clogs or a full septic tank, include slow-flushing toilets; slow drainage or water backing up into sinks, showers or tubs; gurgling drainpipes; or even sewage backing up in toilets and sinks.eptic systems commonly fail or experience problems because a septic tank is full or a clog exists somewhere in the line. Some of the earliest signs that a septic system is struggling are first spotted indoors.