{"id":1707,"date":"2023-03-13T14:50:38","date_gmt":"2023-03-13T05:50:38","guid":{"rendered":"https:\/\/puric.organo.co.jp\/?p=1707"},"modified":"2025-03-19T14:28:03","modified_gmt":"2025-03-19T05:28:03","slug":"self-checking-of-pure-and-ultrapure-water-systems-dealing-with-long-downtime","status":"publish","type":"post","link":"https:\/\/puric.organo.co.jp\/en\/column\/self-checking-of-pure-and-ultrapure-water-systems-dealing-with-long-downtime\/","title":{"rendered":"Self-checking of pure and ultrapure water systems: Dealing with Long Downtime"},"content":{"rendered":"

How did you find the key points concerning management of pure and ultrapure water systems in \u201cRegular Inspections<\/a>\u201d in the previous column? This column will introduce \u201cDealing with Long Downtime,\u201d matters to be carried out when equipment is unused for five days or longer.<\/p>

Dealing with Long Downtime<\/strong><\/h2>

\uff11. Turn off power to the equipment and shut off the water supply source.<\/strong>
\u2192 This prevents water leaks and backflow.<\/span><\/p>

\uff12. Empty the tank.<\/strong>
\u2192This prevents the growth of bacteria.
Water stored in the tank cannot be used after a vacation period.
<\/span>To reduce work following a vacation period, drain the water beforehand.<\/p>

\u3000\u3010How to drain water\u3011
\u3000Drain water from the tank cock or the drain plug.
\u3000* It may not be possible to drain water completely from the tank cock. Using the drain plug may be preferable.\u00a0 \u00a0Do not forget to close the drain plug afterward.

<\/p>

\uff13. Drain water from the pipes.
<\/strong>\u2192This prevents freezing and bacterial growth. If you have any concerns about draining the pipes, please consult your dealer.<\/p>

\"\"<\/p>

Dealing with Long Downtime<\/strong><\/h2>

Perform sufficient circulation treatment and blowing of treated water before use, and perform dispensing after the water quality has risen.<\/strong>
\u2192This step is performed because the TOC value does not readily decrease in ultrapure water immediately after the equipment is started or in primary generated water.<\/p>

Examples of equipment trouble<\/strong><\/h2>

Trouble<\/strong>:<\/span> The equipment was temporarily stopped due to water supply-related construction work. Afterward, the water quality did not return to normal.
Cause<\/strong><\/span>: A large amount of impurities contained in the water supply following construction work was released into the equipment.<\/p>

\u21d2\u25ce Solution<\/strong><\/span>: Disconnect the equipment from the water supply before the construction work, let water sufficiently flow following the construction work, and then connect the water supply to the equipment. When construction work is performed in the facility, discard initially flowing water, then connect the equipment.<\/p>

Summary<\/strong><\/h2>

The above introduced key points in \u201cDealing with Long Downtime,\u201d by which persons using pure or ultrapure water can inspect equipment on their own.<\/p>

  1. Actions before long downtime<\/li>
  2. Actions following long downtime<\/li><\/ol>

    The columns so far have introduced key points concerning equipment management in \u201cRoutine Inspections<\/a>,\u201d \u201cRegular Inspections<\/a>,\u201d and \u201cDealing with Long Downtime.\u201d<\/p>

    Use this information as reference to properly manage equipment and reduce the risk of interruptions in analysis.<\/p>","protected":false},"excerpt":{"rendered":"How did you find the key points concerning management of pure and ultrapure water systems in \u201cRegular Inspections\u201d in the previous column? This column will introduce \u201cDealing with Long Downtime,\u201d matters to be carried out when equipment is unused for five days or longer.Dealing with Long Downtime\uff11. Turn off power to the equipment and shut […]","protected":false},"author":2,"featured_media":158,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/puric.organo.co.jp\/?p=1706","footnotes":""},"categories":[1],"tags":[26,27],"class_list":["post-1707","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-column","tag-pure-water","tag-ultrapure-water","en-US"],"acf":[],"aioseo_notices":[],"views":1091,"_links":{"self":[{"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/posts\/1707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/comments?post=1707"}],"version-history":[{"count":5,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/posts\/1707\/revisions"}],"predecessor-version":[{"id":1795,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/posts\/1707\/revisions\/1795"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/media\/158"}],"wp:attachment":[{"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/media?parent=1707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/categories?post=1707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/puric.organo.co.jp\/wp-json\/wp\/v2\/tags?post=1707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}