Deserves mention here. It is the pump used in the Lavac head system. Jim Baldwin on his website has a page on his install of the Lavac in his Triton. No where does he even whimper about the (one assumes) regular use of this pump. Very in ter esting.
The Mark V Henderson Pump is now associated with Whale. Usually means the price goes UP. It must be available other places than Defender, who probably have a good price on it. Around a hundred.
Made of glass reinforced polypropylene and Delrin, weighs about 3 #s and is in the 16 gpm range. While no good for when your seacock breaks loose, it is my choice for the stand by manual bilge pump because it has a rep for dependability, won't clog easily, has a number of mounting options and outlet positions. Can also get a thru-deck kit for it. Pretty certain I want to mount it under the seat, aft in the cockpit, so that the handle can be operated in a vertical 'rocker' mode. Could be put on the bridge-deck part of the seat, where it could be operated from the c'way.
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