{"product_id":"cj-series-pressure-gauge","title":"Jandy CJ Series Pressure Gauge","description":"\u003cp\u003eThe Jandy R0556900 is the pressure gauge for the CJ series filter, supplied as a replacement kit. It is the genuine Jandy Pro Series part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the gauge matters more than it looks\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA filter gauge is the only instrument most pool owners have. Filter cleaning is not scheduled by the calendar, it is triggered by pressure: as the media loads with dirt, resistance rises and the gauge reading climbs. When the needle sits a set amount above the clean starting pressure, the filter needs attention. Without a working gauge that entire system of judgment disappears and the filter gets cleaned too early, wasting effort, or far too late, starving the pump and the heater of flow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAfter you fit it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eInstall the new gauge, run the system until the pump is fully primed and the air is out of the filter, then write down the reading. That number is your clean baseline, and it is what every later reading is compared against. Baselines drift as media ages, so it is worth noting a fresh one after a deep clean or a media change.\u003c\/p\u003e","brand":"Jandy","offers":[{"title":"Default Title","offer_id":48633669353684,"sku":"TLD-051-5050","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_a18d56ac-8d13-4b26-9fb6-556a2ac9a542.jpg?v=1788808522","url":"https:\/\/www.activepoolsupply.com\/products\/cj-series-pressure-gauge","provider":"Active Pool Supply","version":"1.0","type":"link"}