New pool owner have some problems...

[djdiplomat]

I just purchased a FC house with a 35k pool. My main concern is that I always have air in the system. I replaced all o-rings,ensured that the water level is proper and checked all the visible pipes for leaks. In addition I also have a leak which I am afraid could be from one of the underground pipes since I could not localize anything with dye inside the pool. I loose about 3-4 inches in a week and then water line settles right above the bottom of the skimmer. Any ideas?

Also why do I only have 1 suction pipe (most setups I see have 2)? I have 1 skimmer and a drain. What is the loop of pipes on the bottom left?Cant really see but the pipe after the diverter goes into the ground before that loop.

Thanks in advance.

 

[Isaac-1]

First off air in the system while running is almost always a suction side leak, the most common place to find them is the gasket on the pump basket (check the o ring, lubricate with silicone lubricant, also check the drain plugs on the pump). As to the single return most likely the drain is plumbed through the skimmer, it was a common method to prevent entrapment hazard from the main drain.