热水器泄压阀是要自己常泄吗（热水器泄压阀可以自己泄吗）

{"rich_content":{"text":"","spans":null},"video":{"vid":"v028b09d0000c12rspubfjld4fkvdh10","duration":79.343,"width":1024,"height":576,"file_size":4660527,"thumb":{"web_uri":"tos-cn-p-0000/82d7366ca868468dae558da2e100f7d5","width":640,"height":360,"image_type":null,"mimetype":null,"encrypt_web_uri":null,"secret_key":null,"encrypt_algorithm":null,"extra":null},"video_size":{"high":{"duration":79.343,"file_size":4112204,"w":854,"h":480},"normal":{"duration":79.343,"file_size":3025348,"w":640,"h":360},"ultra":{"duration":79.343,"file_size":5334681,"w":1024,"h":576}},"is_encrypted":null,"sp":null,"md5":"8097490cda412f864e9b546e31ed0baa","tos_key":null,"secret_key":null,"encrypt_algorithm":null,"extra":null}},