If you do not have one get a hose sprayer or a water breaker and hose down the shore areas to get the algae out and to help water flow freely between the plants.

Here is a link that might be useful: Dramm water breakers

Thanks for the advice. I do have a sprayer--just havn't thought of using it because of the chlorine/chloramines added to the pond by spraying the pond directly. I was wondering if anyone used some kind of jet along the edges. The bubble tube works it's just that when I run the Dolphin AV50 pump I get so much bubbles that the waterlily stems bend away from the air flow. It's also a noisy aeration pump. I'm going to look into getting a smaller one for next year if I can sell this one. Hard to do here in CD as not worth shipping back to anyone on the forum from the US as shipping costs are crazy. Another project for next year!