Hi all, I may have really goofed this time. I have a 22,500 gal pool and I'm using a Haywood 200 sand filter with a Haywood 1 1/2 HP pump. I had a zillion earthworms on the pool bottom when I opened, so I wanted to vacuum them up the best way I could. I decided to remove the "catch" basket from the pump and set the valve to waste so the worms would be vacuumed up and right out the discharge instead of being sent to the filter. Great concept, or so I thought. When I was done, I noticed that I had lost all kinds of pressure, from about 18 PSI to about 6. The discharge water did not have any worms where it came out on to the lawn. I have three lines coming into the pump, one from each skimmer and the bottom drain. The lines are clear of worm blockage. I fear I have a big humongeous clump of worms somewhere in the pump or filter or valve. The pump seems to be running okay, but I'm thinking that removing the basket from the pump while vacuuming was my big mistake. I have everything back in place now, but I'm running very low pressure. Does anyone have a good idea about where I should look and what I should do next to get my pressure up? Thanks to all in advance of your response. 
I was running 20psi and dropped to 10 or 11psi. I took the impeller out and cleaned the clogs. After getting everything back togather and switching the pump back on, my filter pressure remains at 10psi. I checked the skimmer and main drain lines as well as multi valve for obstructions. They were all clear. Any ideas as to what else could be causing my pressure loss?
(nice avatar BTW!!) I've said in the past that pools are like computers...hate 'em when they don't work right, love 'em when they do!! All is right with the world when they do! 
