Dear Monica, I am very sorry that you got sick and I hope you are well. It was most likely because of the food that you bought outside of the property. The chlorine level of the pool and its pH is controlled daily and I can assure you that you would not get sick of E. Coli by chlorinated water.
I understand that your comments are motivated by the claim made to Airbnb for the set of lost keys, including the main doors and rooms. Please understand that we were forced to change the locks for the safety of our future guests.
It is a beach house surrounded by nature, in the welcome letter we gave you recommendations to keep the doors of the rooms closed to prevent the entry of insects. As you could notice, the doors have barriers at the foot and the roofs are sealed to prevent the entry of insects.
Three years ago or so, a family that was walking on the cliff fell into the sea and unfortunately 3 of them died, they did not died bathing at the beach. Nevertheless everybody should be careful while in beach waters.
Regarding the cleanliness of the bedding, I find it very difficult to give it credit since I know the work of Francisco and Ana, which has been corroborated in most comments about the property.
Finally, we send the control of the A / C to repair. The technician told us that he had been hit, but it was repaired at our cost.