OK. So I dumped all my water on Thursday, April 1. Cleaned things up on Friday and filled it back up by 2:30 Saturday. The water was a bit yellow, which it was when I first filled it last June. By Monday morning it was pretty clear but by yesterday it was TFP clear. See photo. Now my PVC pipes and the pump basket are quite orange, photo. I soaked the basket in some Kirkland chewable Vitamin C in a 5 gallon bucket and now it’s clean. Question: I assume that all the pipes are orange on the inside. Is that a problem? I think that if it’s not broke, don’t break it. But I dunno.