I recently installed the PoolCleaner using the blue rubber adapter and regulator valve and supplied hoses. When the pool pump is on, it's much louder and noisier and there's a lot of air in the pump basket. With the PoolCleaner unplugged from the skimmer (no dedicated vacuum port) the pump is not as loud or noisy and but there are few quarter sized air bubbles in the pump basket. I'm pretty sure there's an air leak somewhere. Is it normal for the PoolCleaner to cause more air to be sucked into the pump? I've checked to make sure the adapter plug is submerged in water and the PoolCleaner is doing it's vacuum thing? This is the 4 wheel version if it makes a difference.