I just wanted to report back on my pond startup. I did about a 1/3rd water replacement as I skimmed a bunch of stuff off the bottom. The ShopVac wasn't that great at sucking up the bigger leaves or sticks off the bottom. I found that once the water got stirred up, stuff kind of floated up and I could get it with the vacuum or my skimmer net for larger debris. The latter has proved to be very effective. Then, over a few days, after the water was more clear, I could spot debris that I missed and then grab it with the skimmer net. I've been treating once per week with the so-called beneficial bacteria. The pond is looking pretty good right now and some of the plants are coming back. We have at least 2 resident frogs and the fish seem healthy. I guess the prior homeowner had the plants rooted in pots at the bottom - I'm surprised at their return. We're planning a trip soon to the PondGuy (they are in our area) to pick up some more plants and some snails. Got the pump working and waterfall working. I have a bit of leakage around the waterfall that I'm not too sure the source of. Once our rains slow I might try to dry it for a couple of days and spray some of the waterfall sealant in the rocks.
As far as filter cleaning. I've pulled the skimmer/pump filter out once per week to hose it down. But the waterfall filters and bioballs we treated with the bacteria starter stuff. So is it correct that generally we should leave these alone and not clean them very often? Every time we've had rain or strong wind we're getting a bunch of tree buds in the pond. The filter in the skimmer box gets gunked up pretty quickly but I haven't touched the waterfall filters.