If the pump is working correctly you should be able to read the amps go up and down when you turn on and off the load on the pump by opening/closing faucets.
Do it with a 1” pipe open at the well with a ball valve to open and close as you watch your amp meter.
Do the same with faucets in the house.
I wouldn’t use any hot water inside during this test. I know that tankless water heater restricts volume, most all water heaters do, tankless and conventional.
Also at normal water heater set temps most of your showers mixed temp is using hot water.
For Example:
A water heater with a thermostat setting of 120° F and the cold water inlet temperature is 50° F and the shower temperature is 110° F would use 86% HOT water and 14% COLD water.
Do it with a 1” pipe open at the well with a ball valve to open and close as you watch your amp meter.
Do the same with faucets in the house.
I wouldn’t use any hot water inside during this test. I know that tankless water heater restricts volume, most all water heaters do, tankless and conventional.
Also at normal water heater set temps most of your showers mixed temp is using hot water.
For Example:
A water heater with a thermostat setting of 120° F and the cold water inlet temperature is 50° F and the shower temperature is 110° F would use 86% HOT water and 14% COLD water.
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