I looked for blockages in the chamber and that looked clean and the burner itself with flame looks very strong.

They went out of town for 2 weeks and it was heaven, this place was totally liveable, I would have had party but my cat died, probably from stress induced by one of their screaming battles, but actually from a urinary tract blockage that would have cost over a thousand to correct (which is known to be caused by stress) anyway.

A couple of years ago I had a sewer line dug up where the camera showed a blockage.  

Jay, it sound like you have a blockage in your shower drain.

But remember that clause in the lease about how the tenant is responsible for foreign object blockage in the plumbing system?

Affordable Plumbing came in and found the faucet center caps had fallen into the drain and causing the blockage.

We have Enphase microinverters, so if there is some blockage, we still get power. 

Do the toilets inside flush without any blockage if you pour a bucket of water into the toilet, same for the sinks and any floor drains,?

Check out this picture of a root blockage at our AZ property....and this was under a driveway too!?! 

Many times I have gone to a rental to clean a drain for a landlord and he is sitting there watching and waiting for me to pull the snake out to see what caused the blockage.