New to Pools

[Rupes]

So we had our pool built last august and then covered it for the winter. I am now just getting it open for the season and I have noticed that at times the skimmer does not appear to be pulling very well. It is the type without a flapper and a diverter in the bottom below the basket. My question is on the diverter there is a hole with adjustable cover. How open is this suppose to be? When i close it down mostly it seems to make the skimmer work and when its mostly open then it seems to stop pulling.


As shown in this picture I wasn't getting very much pull so when I closed it down it seems to be working better. I just wanted to make sure I haven't changed something that could damage the pump.

 

[Richard320]

That flap usually is underneath. All it does is balance the flow between the skimmer and the main drain. You want to fiddle with it so you get lots of action in the skimmer and a little in the main drain. You probably won't be able to even tell if the main drain is getting any. Just know that when the skimmer starts looking sluggish, you went too far. Hope that helps.

 

[Rupes]

Ok great, I just wanted to make sure that if water levels dropped that I didn't change something that would affect if switching to main drain?