New Water Ace pump, 1 hp, set at 135 feet, static water 45 feet and maintains that level, well providing approx 25 gallons per minute. At initial start up, we turned on spigot and bypassed pressure tank with intent to run well until clear. Pump will only run for 15 minutes and then stops. 15-20 minutes later it automatically starts. Wire size is 12 guage, circuit breaker is 230, 2 pole, 30 amp. Pitless adapter leaks slightly. Why won't it stay on?