I see a few bubbles from the returns when I start up as well for like 2-3 seconds.

Anyone else?

A solar system at start up will cause bubbles when priming the panels.

If you don't have solar then you shouldn't see any bubbles. Do you see any air in the pump basket before start up? That will also cause bubbles and is an indication of an air leak.

Thank you for the responses. We don't have a solar system. There are some bubbles in the filter basket but they are very small. I don't see any leaks and/or water around any of the plumbing or equipment. If one of the return lines or fittings is leaking underground, would this cause the bubbles at startup?

We have bubbles at start up, and on low speed. Once the high speed kicks on bubbles disappear. I keep reading there is a leak, most likely at the pump basket lid, but I have no clue. PB (Huskyridor) says not to worry, so I'm not worried.

zooming,

It is possible that if you have a return line leakage, air could leak into the system when the pump is off. However, you should see water pool somewhere when the pump is running unless it is able to drain away quickly.

Another possibility is the filter. Sometimes the seals will work well with pressure but leak when the pump is off. So next time you turn on the pump, see if you can bleed off any air in the filter.

Also, does the pump basket remain full of water when the pump is off for a while?

The air is coming from somewhere. It's just a matter of determining where. If it is not causing any issues, you could ignore it but if it was me, I would want to find out where it is coming from as it could lead to other problems.

mas985,

Thank you for responding. As for a return line leak, I don't see any leaks/water. I'll check the filter seal. I have released air but I'll but I'm wondering if I set the filter seal properly when I cleaned the grids. The pump basket doesn't loose water. Whats odd is, if I turn off the system for as little as 5 minutes I see bubbles coming from the return fittings when I start it up again.

zooming993,

I had this too recently. I replaced the O-ring on the pump basket lid, lubed it up good before putting it on, and this stopped the bubbles at startup.

If you recently worked on the filter, my guess is that is where the problem is. If you get air after only five minutes you should be able to hear the air entering the filter and bubbling up to the top.