hard suction hose
... that since hard suction hose is designed for fire engines drafting water, it is the only type of fire hose tested under suction instead of pressure?
... that since <b id="mwEdI"><a href="./Hard_suction_hose" id="mwEdM" rel="mw:WikiLink" title="Hard suction hose">hard suction hose</a></b> is designed for <a href="./Fire_engine" id="mwEdQ" rel="mw:WikiLink" title="Fire engine">fire engines</a> <a class="mw-redirect" href="./Drafting_water" id="mwEdU" rel="mw:WikiLink" title="Drafting water">drafting water</a>, it is the only type of <a href="./Fire_hose" id="mwEdY" rel="mw:WikiLink" title="Fire hose">fire hose</a> tested under <a href="./Suction" id="mwEdc" rel="mw:WikiLink" title="Suction">suction</a> instead of <a href="./Pressure" id="mwEdg" rel="mw:WikiLink" title="Pressure">pressure</a>?