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I pump from the well to a shed with a 500 gallon tank which then feeds the house. I am set up this way because the well is a very slow producer.

My well runs out of water once in a great while under 2 different circumstances:

1: No rain for months on end. I understand this one.

2: Very heavy rain for more than 5 or 6 days at a time. I don't understand this. It can drizzle or rain moderately for months at a time and everything is fine, But if it starts raining really hard for a week or so the well runs dry.

It's like when it rains too much the water gets diverted somewhere else or something.

I have an alarm on my tank so if it drops below 400 gallons I know the well is dry again and we can go into super water conservation mode.

I pump from the well to a shed with a 500 gallon tank which then feeds the house. I am set up this way because the well is a very slow producer. My well runs out of water once in a great while under 2 different circumstances: 1: No rain for months on end. I understand this one. 2: Very heavy rain for more than 5 or 6 days at a time. I don't understand this. It can drizzle or rain moderately for months at a time and everything is fine, But if it starts raining really hard for a week or so the well runs dry. It's like when it rains too much the water gets diverted somewhere else or something. I have an alarm on my tank so if it drops below 400 gallons I know the well is dry again and we can go into super water conservation mode.

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[–] • 2 pts

Incorporate rain catchment and a larger tank or more tanks.

Rainfall doesn't fill your well immediately.

Rainfall generally takes a few years to get from the topsoil to the aquifer that supplies your well.

It's possible heavy rain is moving the water table around in weird ways, but my first take is that it's a coincidence.

I imagine just a little more depth on your well is what you need, if the water table height is bouncing up and down over your pump level.