Provide the theme summaries for the following conversation: 

Hank: How's it going?
Tom: Like blood from a stone mate!
Tom: Been struggling with the damn pump all day.
Hank: Damn!
Tom: Yeah and I'm still no closer to a solution.
Hank: What's been going on with it?
Tom: It kinda works and pumps the water out but it doesn't produce enough power to pump it out through the hose.
Hank: Air bubbles?
Tom: Yeah, I thought that too but I'm not so sure now.
Hank: Have you tried throwing it into the pond and wiggling it around to see if you can dislodge the air bubbles.
Tom: Yeah, been there done that.
Hank: And...
Tom: Seems to work for a moment then you put it back in the sump and we're back to square one.
Tom: I thought of taking it apart to see if maybe the turbine needs cleaning out.
Hank: If you can help it please don't do that as it might invalidate the warranty.
Tom: Might need to do that because I think I've exhausted every other option.
Hank: Wait until I come home and I'll see if I can manage to get it going.
Tom: OK.
Hank: I'll be home by 7pm.

Summary: 
Tom's pump doesn't work properly. It sucks the water in but pumps out just the air bubbles. Nothing helps. The pump is still on warranty. Hank will be home at 7 pm and will check the pump. 