Water advice please

You can order a "Pipa" (truckload) of water. If it wasn't Saturday, I'd tell you to go to the Simapa office next to Oxxo in the same plaza as the Sunrise Restaurant to ask them what's going on with your water. When the problem is THEIRS, they are obligated to provide you with a truckload of water. I hesitate to recommend the private companies because who knows where their water comes from.

https://www.chapala.com/webboard/index.php?/topic/90780-pipas-in-the-area/

I agree Mike. It's always a good idea to be a responsible water user all year round. That includes, not only being careful to not waste it, but also making sure that your water system has no leaks.
If you have a pressure system and a submersible pump in your aljibe, you are not necessarily going to hear anything untoward. However, if you have a hole of 1/16 inch in diameter in your underground pipe, you will lose ONE THOUSAND LITRES OF WATER in an eight hour period. If you have an above ground pump, you will hear it turning on and off as it wants to maintain pressure and then you will investigate because the noise is annoying and you know that no water is being used in the home.
However, most people like peace and quiet and have submersibles. So, do a check now and again. Turn off the water from the street when your aljibe is full and make sure your sprinkler system is off too. Go to bed. Don't flush even if you have to get up in the night to pee. First thing in the morning, before any water use, check the level in your aljibe. If the water level has dropped, you have a problem somewhere.

I installed an old fashioned yard stick inside my aljibe on the coast. And also knew the inside dimensions of the aljibe. With that information, if there was a drop, I could calculate how much water was lost. New construction... one tiny hole in a faulty pipe connection (in the garden fortunately before it entered the house). That's where the 1,000 litre loss calculation came from. There are 1,000 litres of water in 1 cubic meter of space in your aljibe.