I'm new to the forum but also new (within 6 months) to swimming pool ownership as well.

I have been doing ok at working my in-ground pool (which is 12,500 gallons and includes an in-ground spa.) I run the filter daily and have had no problems until recently. I generally run a kreepy krauler the entire period through the skimmer as I have no wall vac. the water is filtered and then i run it about 80% back to the spa which spills to the pool and then the remaining 20% directly back to the pool through a jandy valve. I have noticed a lot of bubbles coming to the top of my filter the last few days when running the kreepy krauly but get none when just running the skimmer.

I'm looking for ideas on how to resolve the issue. I have checked the connection on the hoses of the kreepy krauly and they all seem to be snug.

thanks for the help!