I recently replaced my ancient noisy pressure pump with a new PBR-40 that runs my Polaris pool cleaner.
It was working fine until I pulled the pool filter to clean it. Now the pressure pump isn't really working,
it gets big surges. I pulled the cleaner hose and removed the pressure regulator and made sure it was working,
because I noticed I was not getting any flow out of it. Put it back in and it seemed to work again,
but only for 1 day. The next day, I get the same surging again, and no flow out the pressure regulator.
Took it back out, and it works, put it back in, and still surging.
It appears I am getting a lot of bubbles in the pressure line, if I disconnect the cleaner hose, I see lots of bubbles
coming out. I've also noticed my recirculating pump (replaced 3 years ago) is not moving a lot of water,
the suction when doing a manual cleaner is very low. I'm wondering if the recirculating pump just can't keep up
with the pressure pump now, so it ends up sucking in air??
I've done google searches and have not found any real help on the surge issue,
so could really use some help here. Thanks, Jack