供水干管、楼内管道有漏点，或是自来水供水系统停水，造成供水水压变小。
<dd id='g0spt'><tbody id='g0spt'><td id='g0spt'><optgroup id='g0spt'><strong id='g0spt'></strong></optgroup><address id='g0spt'><ul id='g0spt'></ul></address><big id='g0spt'></big></td><table id='g0spt'></table></tbody><pre id='g0spt'></pre></dd><span id='g0spt'><b id='g0spt'></b></span>
<dfn id='g0spt'><optgroup id='g0spt'></optgroup></dfn><tfoot id='g0spt'><bdo id='g0spt'><div id='g0spt'></div><i id='g0spt'><dt id='g0spt'></dt></i></bdo></tfoot>
<ul id='g0spt'></ul>
<fieldset id='g0spt'></fieldset>
