Ok, so I spoke with the dealer. They were befuddled, but offered to RMA the pump. They did, however, say it was fine to open the pump up. So I did, and it turns out the impeller was totally packed with pine needles and such. Neither the skimmer basket nor the leaf basket in the priming pot had caught them. I cleaned it out and started the pump back up, flow is much improved. I guess this was the original problem, I may have then also got some grit in the o-ring opening and closing the priming pot.
For now I put a filter sock on the skimmer basket, leftover from when this was a pool, but I'm sure it's going to be too fine for the pump. What do people use to keep this sort of thing out of their pumps? Maybe line it with filter mat?
For now I put a filter sock on the skimmer basket, leftover from when this was a pool, but I'm sure it's going to be too fine for the pump. What do people use to keep this sort of thing out of their pumps? Maybe line it with filter mat?