User talk:65.28.239.236

May 2018
Hello, I'm Ruyter. I wanted to let you know that one or more of your recent contributions to Hardness comparison have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk. Thanks. Ruyter talk 18:38, 23 May 2018 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

Please refrain from making unconstructive edits to Wikipedia, as you did at History of water supply and sanitation. Your edits continue to appear to constitute vandalism and have been automatically reverted. Thank you. ClueBot NG (talk) 18:42, 23 May 2018 (UTC)
 * If you would like to experiment, please use the sandbox. Note that human editors do monitor recent changes to Wikipedia articles, and administrators have the ability to block users from editing if they repeatedly engage in vandalism.
 * ClueBot NG makes very few mistakes, but it does happen. If you believe the change you made should not have been considered as unconstructive, please read about it, [ report it here], remove this warning from your talk page, and then make the edit again.
 * If you need help, please see our help pages, and if you can't find what you are looking for there, please feel free to place on your talk page and someone will drop by to help.
 * The following is the log entry regarding this warning: History of water supply and sanitation was changed by 65.28.239.236 (u) (t) ANN scored at 0.88746 on 2018-05-23T18:41:59+00:00.