I have a 16 by 32 inground and i was vacuuming and lost suction. I used a drain king on my garden hose thinking i sucked up a massive clump of leaves but it didnt solve the issue this time. When i shut off my main drain valve it comes in very slowly then almost like it catches and the water comes out for a quick sec and then back to slow flow. Ive looked down the skimmer with no water and removed the valves cant see anything that i would think might be an issue. Any ideas?