I’ve been frustrated by the changes in what I perceive in pressure in the system. I have a pool cleaner that says everything is fine but the cleaner moves around at different speeds. Sometimes very fast and sometimes slow. I took a video of the skimmer and I see things just going in and out of it. Not sure if that’s supposed to be like that. The filter was rinsed last week and all the valves checked. But something is off.should there be an in line gage somewhere to measure pressure? I something gets in the impeller how would one know?