Why does my pool pump lose pressure and blow bubbles when I attach my auto vacumn to it? It never did this before. I have an inground 32000 gal pool.

It never did this before. I have an inground 32000 gal pool.
Why does my furnace rumble so much when...
Answers:    net sure that you have filled adjectives the hoses and the vac with water past you hook up the pump and then look for a place where the vacuum hose can allow nouns to leak into the system
Oil Furnace price?
it may be restricting the flow(losing pressure..and also alot of times the hoses do not seal if they come surrounded by sections.