滑铁卢华人, 水城百事论坛 http://www.kwcg.ca/forum/ 水城社区-Kitchener, Waterloo, Cambridge & Guelph华人的网上家园 en 一般泳池很少换水，都是采用循环换水的办法，一段时间内，每天换一点。测试水质过了就可以了 Reply by 匿名, Tuesday, July 09, 2024, 15:59:

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]]> http://www.kwcg.ca/forum/index.php?id=1427835 http://www.kwcg.ca/forum/index.php?id=1427835 Tue, 09 Jul 2024 15:59:54 GMT 匿名 中国黄河变清。沙漠变草原。美国加州正走在相反的道路上。 Reply by 匿名, Tuesday, July 09, 2024, 15:54:

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]]> http://www.kwcg.ca/forum/index.php?id=1427834 http://www.kwcg.ca/forum/index.php?id=1427834 Tue, 09 Jul 2024 15:54:12 GMT 匿名 在加州以后有个泳池是不是永远都不能换水了? Reply by 匿名, Tuesday, July 09, 2024, 15:51:

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]]> http://www.kwcg.ca/forum/index.php?id=1427832 http://www.kwcg.ca/forum/index.php?id=1427832 Tue, 09 Jul 2024 15:51:22 GMT 匿名 零售供水商，而不是个人家庭或企业，现在将被要求在未来15年内减少近30%的用水量。 Reply by 匿名, Tuesday, July 09, 2024, 15:50:

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]]> http://www.kwcg.ca/forum/index.php?id=1427830 http://www.kwcg.ca/forum/index.php?id=1427830 Tue, 09 Jul 2024 15:50:42 GMT 匿名 史上首次!加州将实施永久性限水措施 违者罚款上万 Posting by 匿名, Tuesday, July 09, 2024, 15:49:

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]]> http://www.kwcg.ca/forum/index.php?id=1427828 http://www.kwcg.ca/forum/index.php?id=1427828 Tue, 09 Jul 2024 15:49:17 GMT 匿名