influence the movement direction of the cleaners to which they are attached if a hose pulls an attached cleaner to the right of a nominal path for example housing 62 will pivot so as to point inlet end 50 of valve 54 to the left of the nominal path doing so provides more suction power left of the path effectively counteracting the influence of the hose similarly if the hose pulls cleaner 10 to the left of the nominal path housing 62 will pivot so as to direct the suction power of valve 54 to the right of the path in this manner the position of valve 54 continually conflicts with the movement influence provided by the flexible hose thereby lessening the effect of such influence illustrated in various of fig1 8 is apron 34 to which one or more footpads 68 may connect conventional aprons which are generally annular in shape thus have substantially equal lengths and widths by contrast apron 34 is substantially wider than it is long this configuration allows body 14 to be closer to a corner or other transition of a pool before sealing against the pool surface via disc 38 is lost consequently apron 34 facilitates cleaner 10 originating its climbing of vertical surfaces of pools underside 70 of apron 34.