The technicians made it here on Wednesday and pulled the pump to take back to their shop. They agreed with Pentair that the pump is toast, but they would look at it.
Thursday mid day they got back to us and sent photos of the windings, the bearings and the electronics. They said they thought it might be salvageable but it would take, "many hours." They hope to bench test it today, Friday.
In the meantime, I have located several, the best price being on MercadoLibre, $50,955 pesos, 11 day delivery time. Much better than what we expected, but a long time to wait for one. Still toying with a run to the US, but for the few hundred US dollars savings, it wouldn't be worth the wear and tear.
In the meantime, we are brushing the pool daily and keeping the chemicals a bit high. It looks bad, but it's all we can do.
We are replacing, if necessary, fingers crossed, the pump with exactly the same one for a great reason. I know people will doubt this information, but our pool is large, 15 meters by 4 meters. The pool room shares an electric meter with the washer and dryer and the water pump. Our last CFE bill, for two months, and we know it's accurate, was 64 pesos. We normally run the pump 6 hours a day.
Expensive pump, very low electrical usage.