We had the filters out on our hot tub as we started draining it and were wiping down the filter housing with a sponge. That sponge got sucked down one of the filter openings. I can not find a clear diagram on the manufacturer website of where that pipe flows next, though I suspect to one of the pumps. Most of the pipes are hidden in foam insulation so I can't follow them. I tried sticking a wire down the opening to see if it was close enough to snag. No luck. I tried using a shop vac to suck it out once the spa was drained. Got water, but no sponge.
Any idea what to try next? I don't have a wrench large enough to unscrew the fittings and can't budge them by hand. I don't want to destroy the pump when I turn it on. Do I have to call a repair guy out? If I don't turn it back on, it will freeze.