System Overview<\/h2>\n\n\n\n
Where can I find the pressure tank and switch? See below for a labeled diagram of a typical well system with a submersible pump. Your system may look slightly different, but the general components are often the same.<\/p>\n\n\n\n After identifying the components, the first step is to observe pump performance over a few days. Document the following:<\/p>\n\n\n\n This can be viewed in the imbrr dashboard under pump performance. Click \u201cView Last 7 Days\u201d to see the pump history. See below from our case study:<\/p>\n\n\n\n For this example, the minimum cycle volume is 5.6 gallons in 34 seconds with an average start pressure of 43.8 PSI and stop pressure of 59.3 PSI.<\/p>\n\n\n\n Safety First: power must be disconnected (typically pump breaker) before any adjustments are made to the pressure switch.<\/strong><\/p>\n\n\n\n The factory settings and instructions for adjustment are typically found on the plastic cover. See below from our case study system:<\/p>\n\n\n\n With the above guidance, the pressure switch was adjusted to 40\/60 PSI by turning nut #1 counterclockwise 1.5 turns and nut #2 clockwise 2 turns. The effect is shown below:<\/p>\n\n\n\n Note, if the adjustment results in inconsistent readings or drift, it may be time for a new pressure switch. They don’t last forever.<\/p>\n\n\n\n A Schrader valve is typically located on the tank to add or remove air. The easiest way to determine a need for adjustment is to review the expected drawdown for your tank. It should generally be between 25% to 30% of the tank capacity. In our case, the pressure tank is a Water Worker 32 gallon HT-32B which has a documented drawdown of 8.57 gallons at 40\/60 PSI (MC#7230 01\/16):<\/p>\n\n\n\n We are a little low (7.8 gal vs 8.57 gal) so the tank was drained and air pressure was measured to be 36 PSI. The recommended air pressure is 2 PSI below the ON pressure as shown in the below table:<\/p>\n\n\n\n So in this case, a bike pump was used to increase the tank pressure to 38 PSI. This small addition of air resulted in a minimum drawdown of 8.4 gallons in 50 seconds, much closer to the documented volume.<\/p>\n\n\n\n Note, it is generally recommended to have a minimum run time of at least 1 minute to allow for proper pump cooling. Techniques to achieve this would be proper pressure tank \/ pump sizing (expensive on an already existing setup), or the pressure switch could be further adjusted to increase the drawdown. This customer wanted to keep the higher house pressure so the 50 second run time tradeoff was accepted. <\/p>\n\n\n\n To continuously monitor the pressure tank settings, alerts can be set on both the minimum cycle volume and pressure ON\/OFF. 85% to 90% of the expected range is a good rule of thumb. The below was set for our example (note, the max cycle volume is for leak detection):<\/p>\n\n\n\n Even though this system was last adjusted 3 years ago, both the pressure switch and tank pressure needed to be re-tuned resulting in a 50% improvement in the tank storage (5.6 gallon -> 8.4 gallons). This is a significant reduction in pump cycling, extending system life and reducing power consumption. The imbrr well monitoring system<\/a> allows you to set alerts for continuous detection, avoiding the need to manually check the system. <\/p>\n\n\n\n![\"Diagram](\"https:\/\/www.imbrr.com\/blog\/wp-content\/uploads\/2025\/09\/image-4.png\")
<\/figure>\n\n\n\nStep 1: Observe Pump Cycles<\/h2>\n\n\n\n
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![\"Dashboard](\"https:\/\/www.imbrr.com\/blog\/wp-content\/uploads\/2025\/09\/image-5.png\")
<\/figure>\n\n\n\nStep 2: Adjust Pressure Switch <\/h2>\n\n\n\n
![\"Inside](\"https:\/\/www.imbrr.com\/blog\/wp-content\/uploads\/2025\/09\/image-7.png\")
<\/figure>\n\n\n\n![\"Dashboard](\"https:\/\/www.imbrr.com\/blog\/wp-content\/uploads\/2025\/09\/image-8.png\")
<\/figure>\n\n\n\nStep 3: Adjust Tank Air Pressure<\/h2>\n\n\n\n
![\"Chart](\"https:\/\/www.imbrr.com\/blog\/wp-content\/uploads\/2025\/09\/image-9.png\")
<\/figure>\n\n\n\nPressure Switch ON (PSI)<\/strong><\/td> Drained Tank Air Pressure (PSI)<\/strong><\/td><\/tr> 20<\/td> 18<\/td><\/tr> 30<\/td> 28<\/td><\/tr> 40<\/td> 38<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Step 4: Set Alerts<\/h2>\n\n\n\n
![\"Alerts](\"https:\/\/www.imbrr.com\/blog\/wp-content\/uploads\/2025\/09\/image-10.png\")
<\/figure>\n\n\n\nWrap Up<\/h2>\n\n\n\n