{"id":19,"date":"2011-03-11T04:32:00","date_gmt":"2011-03-11T04:32:00","guid":{"rendered":"https:\/\/keithspecialty.com\/blog\/?p=19"},"modified":"2019-12-03T17:28:32","modified_gmt":"2019-12-03T17:28:32","slug":"pressure-tank-setting-the-pressure","status":"publish","type":"post","link":"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/","title":{"rendered":"Pressure Tank \u2013 setting the pressure"},"content":{"rendered":"\n<p>\n\t\t\t\tApril 1, 2011\n\n\t\t\t\t\n\t\t\t\t\t<\/p>\n\n\n\n<p><strong>How do I set the air pressure in my pressure tank?<\/strong><\/p>\n\n\n\n<p>The air pressure in the tank&nbsp;should be set\n according to the low cut-in point of the pressure switch. \n&nbsp;Before&nbsp;setting the pressure,&nbsp;it is important&nbsp;to know what the low \npressure cut-in is. &nbsp;There are two ways to determine this. &nbsp;The first is\n to find&nbsp;the pressure rating for the switch you installed. This is valid\n only if the switch has not been adjusted. If the switch was adjusted, \nthe second method should be used, which involves observing the pressure \ngauge to see at which point&nbsp;the pressure switch turns on the pump.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/keithspecialty.files.wordpress.com\/2011\/03\/image002.jpg\"><img src=\"https:\/\/keithspecialty.files.wordpress.com\/2011\/03\/image002.jpg?w=300&amp;h=190\" alt=\"view of the bottom of a pressure tank\" class=\"wp-image-331\"\/><\/a><\/figure>\n\n\n\n<p>The pressure switch rating is normally \nwritten on a tag that is inside the plastic cap covering the switch. \n&nbsp;Typically this can be found on the inside&nbsp;of your pressure switch lid. \n&nbsp;Before you remove the lid to see the label, you should shut off the \npower to the switch at the main circuit panel. &nbsp;To remove the \nlid,&nbsp;loosen&nbsp;the screw on the top of the pressure switch cap.&nbsp;&nbsp; Look \ninside the cover to read the pressure range. The first number is the low\n pressure &nbsp;cut-in &nbsp;pressure.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft\"><a href=\"https:\/\/keithspecialty.files.wordpress.com\/2011\/03\/label-note.jpg\"><img src=\"https:\/\/keithspecialty.files.wordpress.com\/2011\/03\/label-note.jpg?w=292&amp;h=300\" alt=\"label inside pressure switch cover\" class=\"wp-image-334\"\/><\/a><\/figure><\/div>\n\n\n\n<p>The label on the left is a 30 \u2013 50 \npressure switch. Look under the PSI column:&nbsp; ON\/I is the low pressure \ncut-in pressure, the OFF\/O is the high pressure cut-off pressure.<\/p>\n\n\n\n<p>This is the factory setting of the switch \nwhen&nbsp;purchased. However, since the switches have adjustment screws, it \nis possible the switch settings have been changed.<\/p>\n\n\n\n<p>If the switch has been adjusted or you \ncannot find the rating on the switch, you need to observe the pressure \ngauge to see when the switch turns on. &nbsp;You will need power turned on to\n do this. &nbsp; Observe &nbsp;the pressure gauge as you&nbsp;allow water to run in \nyour sink or washing machine.&nbsp;&nbsp;As the gauge decreases, make a note of \nwhere the pressure is&nbsp;when the pump switch activates the pump. This is \nthe low pressure cut-in point. Continue to watch&nbsp;and note the pressure \nwhere the pump switch shuts off. &nbsp;This is the high pressure cut-off \npoint.<\/p>\n\n\n\n<p>Once you have determined the cut-in \npressure you can set the tank pressure.&nbsp;&nbsp;To do so, shut the power to the\n switch (and pump) off&nbsp;and completely drain the tank of water. &nbsp;It is \nimportant to drain the tank completely before checking and setting the \npressure in the tank. If you do not, the pressure will not be set \ncorrectly.<\/p>\n\n\n\n<p>There is a valve stem which is usually on \nthe top of the tank\ufeff under a plastic cap\ufeff.&nbsp; With an air pressure \ngauge,&nbsp;check the air pressure just as you would on a car tire. &nbsp;It \nshould read 2 to 3 pounds less than&nbsp;the low pressure cut-in pressure. &nbsp; \nIf the pressure in the tank is not set correctly, &nbsp;you may then either \nadd or release air as needed.<\/p>\n\n\n\n<p>If you are using a &nbsp;30-50 pressure switch,\n the low pressure cut-in point is 30 psi. &nbsp;Set the&nbsp;tank pressure at 27 \nor 28 psi. &nbsp;Once you have the pressure in the tank set correctly, you \ncan turn the pump&nbsp;back on. &nbsp;Don\u2019t forget to close the boiler valve you \nopened to drain the tank.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>April 1, 2011 How do I set the air pressure in my pressure tank? The air pressure in the tank&nbsp;should be set according to the low cut-in point of the pressure switch. &nbsp;Before&nbsp;setting the pressure,&nbsp;it is important&nbsp;to know what the low pressure cut-in is. &nbsp;There are two ways to determine this. &nbsp;The first is to&#8230;<\/p>\n<p class=\"more-link\"><a href=\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\" class=\"themebutton3\">Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.5.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pressure Tank \u2013 setting the pressure -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pressure Tank \u2013 setting the pressure -\" \/>\n<meta property=\"og:description\" content=\"April 1, 2011 How do I set the air pressure in my pressure tank? The air pressure in the tank&nbsp;should be set according to the low cut-in point of the pressure switch. &nbsp;Before&nbsp;setting the pressure,&nbsp;it is important&nbsp;to know what the low pressure cut-in is. &nbsp;There are two ways to determine this. &nbsp;The first is to...Read More\" \/>\n<meta property=\"og:url\" content=\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/KeithSpecialty\/\" \/>\n<meta property=\"article:published_time\" content=\"2011-03-11T04:32:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-12-03T17:28:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/keithspecialty.files.wordpress.com\/2011\/03\/image002.jpg?w=300&amp;h=190\" \/>\n<meta name=\"author\" content=\"Dave Keith\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@keithspecialty\" \/>\n<meta name=\"twitter:site\" content=\"@keithspecialty\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dave Keith\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\"},\"author\":{\"name\":\"Dave Keith\",\"@id\":\"https:\/\/keithspecialty.com\/blog\/#\/schema\/person\/96d65398e56fac09a6360cad9dc82391\"},\"headline\":\"Pressure Tank \u2013 setting the pressure\",\"datePublished\":\"2011-03-11T04:32:00+00:00\",\"dateModified\":\"2019-12-03T17:28:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\"},\"wordCount\":582,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/keithspecialty.com\/blog\/#organization\"},\"articleSection\":[\"Pressure Tank\",\"Water Systems\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\",\"url\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\",\"name\":\"Pressure Tank \u2013 setting the pressure -\",\"isPartOf\":{\"@id\":\"https:\/\/keithspecialty.com\/blog\/#website\"},\"datePublished\":\"2011-03-11T04:32:00+00:00\",\"dateModified\":\"2019-12-03T17:28:32+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/keithspecialty.com\/blog\/pressure-tank-setting-the-pressure\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/keithspecialty.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pressure Tank \u2013 setting the pressure\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/keithspecialty.com\/blog\/#website\",\"url\":\"https:\/\/keithspecialty.com\/blog\/\",\"name\":\"Keith Specialty Store - 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