Pool and Spa
Questions about Pool Repair? Ask an Expert Online.
My name is Billy.
First - yes it is common to see better pressure with new pump assembly.
Now as far as roll out.....this means partially plugged exchanger or flue which is backing up heat. It doesnt take flame roll out, just excessive heat.
If you replaced already...then you still have a heat issue rolling back.
It can only be obstruction or overfired...
Correct. This is especially prevalent on LP units.
You will need to remove the header and blow back or rod out exchanger
do not cheat by moving the roll out switch...this is an important safety device there for a reason....
Yes, it will not be so much flame rolling back...but heat that is impeded through the exchanger. Sounds like you are partially plugged....soot rust, nest....I have found them all.
A good air compressor, shop vacuum and brush + patience and you should be fine.